Velocimetro

Sensor. java

package ultimo;
import javax.swing.JOptionPane;
import java.text.DecimalFormat;

public class Sensor {

private int velocidad;

public Sensor(){
}
public void setVel(int v) {
velocidad = v;
}
public int getVel(){
return velocidad;
}
public void leerVel(){
String aux;
aux = JOptionPane.showInputDialog("Velocidad que lleva el movil");
velocidad = Integer.parseInt(aux);
}

public static void main(String args[]){
Sensor s = new Sensor();
s.leerVel();
System.out.println("Velocidad = "+s.getVel());
}
}

Velocimetro.java (Frame)

import javax.swing.*;
import java.awt.*;
import ultimo.Sensor;
import java.text.DecimalFormat.*;

public class Velocimetro extends JFrame{
public Velocimetro(){
super("Sensor de control de velocidad");
setSize(300,500);
show();
}

public void paint(Graphics g){
int r,p,y;
super.paint(g);
g.setColor(Color.RED);{
g.drawRect(80, 150, 30, 150);
g.drawOval(370, 150, 150, 150);
}
g.setColor(Color.RED);{
g.drawString("0 Km/h", 80, 320);
g.drawString("280 km/h", 80, 140);
g.drawString("Maneje con precaucion su velocidad es de:", 140, 90);
}
g.setColor(Color.white);{
g.fillOval(370, 150, 150, 150);
g.fillRect(80, 150, 30, 150);
}
g.setColor(Color.RED);{
g.drawLine(300, 0, 300, 400);
g.drawString("Sensor lineal de velocidad",60 , 50);
g.drawString("Sensor de control de velocidad", 370, 50);
g.drawString(" ", 370,70);
}


Sensor s = new Sensor();
s.leerVelocidad();
if (s.getVelocidad()>0 & s.getVelocidad()<= 80){
g.setColor(Color.gray);
g.fillRect(80, 300-s.getVelocidad(), 30, s.getVelocidad());
g.setColor(Color.green);
g.drawString(s.getVelocidad()+" km/h", 150,220);
r=315-s.getVelocidad();
p=((s.getVelocidad()*100)/280);
g.setColor(Color.black);
g.fillArc(370,150,150,150,225,-(320-r));
g.setColor(Color.red);
g.drawString(p+"%", 430, 220);
g.setColor(Color.yellow);
g.fillOval(150, 100, 20, 20);
}
if(s.getVelocidad()>80& s.getVelocidad()<=160){
g.setColor(Color.fuchia);
g.fillRect(80, 150, s.getVelocidad(), -(150-s.getVelocidad()));
g.setColor(Color.red);
g.drawString(s.getVelocidad()+" Km/h", 150, 220);
r=315-s.getVelocidad();
p=((s.getVelocidad()*100)/280);
g.setColor(Color.green);
g.fillArc(370,150,150,150,225,-(320-r));
g.setColor(Color.blue);
g.drawString(p+"%", 430, 220);
g.setColor(Color.cyan);
g.fillOval(150, 100, 20, 20);
}
if(s.getVelocidad()>160& s.getVelocidad()<=280){
g.setColor(Color.cyan);
g.fillRect(80, 150, 30, 150-s.getVelocidad());
g.setColor(Color.red);
g.drawString(s.getVelocidad()+" Km/h",150, 220);
r=315-s.getVelocidad();
p=((s.getVelocidad()*100)/280);
g.setColor(Color.yellow);
g.fillArc(370,150,150,150,225,-(420-r));
g.setColor(Color.blue);
g.drawString(p+"%", 430, 220);
g.setColor(Color.RED);
g.fillOval(150, 100, 20, 20);
}
}
public static void main(String args[]){
Velocimemetro velocidad = new Velocimetro();
velocidad.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

Calculadora

Clase Operaciones

public class Operaciones {
static double resultado;
public Operaciones(){
resultado = 0;
}

public static double seno(double x){
resultado = Math.sin(x);
return resultado;
}

public static double coseno(double x){
resultado = Math.cos(x);
return resultado;
}

public static double tangente(double x){
resultado = Math.tan(x);
return resultado;
}

public static double raiz(double x){
if(x > = 0){
resultado = Math.sqrt(x);
}else{
System.out.println("Solo valores postivos");
resultado = 0;
}
return resultado;

}
public static double logaritmo (double x){
resultado = Math.log(x);
return resultado;
}

public static double suma (double x,double y){
resultado = x+y;
return resultado;
}

public static double resta (double x,double y){
resultado = x-y;
return resultado;
}

public static double multiplicacion (double x,double y){
resultado = x*y;
return resultado;
}

public static double division (double x,double y){
resultado = x/y;
return resultado;
}
public static double exponente (double x,double y){
resultado = Math.pow(x, y);
return resultado;
}

public static void main(String args[]){
double y;
//Operaciones p = new Operaciones();
y = seno(3.141516);
System.out.println("Seno "+y);
}

}

------------------------------------------------------------
APPLET
public class OperacionesCalculadora extends javax.swing.JApplet {
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}});
} catch (Exception ex) {
ex.printStackTrace();
}}

@SuppressWarnings("unchecked")
//
private void initComponents() {

jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton10 = new javax.swing.JButton();
jButton11 = new javax.swing.JButton();
jButton12 = new javax.swing.JButton();
jButton13 = new javax.swing.JButton();
jButton14 = new javax.swing.JButton();
jButton15 = new javax.swing.JButton();
jButton16 = new javax.swing.JButton();
jButton17 = new javax.swing.JButton();
jButton18 = new javax.swing.JButton();
jButton19 = new javax.swing.JButton();
jButton20 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jTextField1 = new javax.swing.JTextField();
jButton21 = new javax.swing.JButton();
jButton22 = new javax.swing.JButton();

jButton1.setBackground(new java.awt.Color(204, 0, 204));
jButton1.setText("Seno");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Coseno");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});

jButton3.setText("Tangente");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});

jButton4.setText("Raiz");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});

jButton5.setText("Logaritmo");
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});

jButton6.setText("1");
jButton6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton6ActionPerformed(evt);
}
});

jButton7.setText("4");
jButton7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton7ActionPerformed(evt);
}
});

jButton8.setText("2");
jButton8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton8ActionPerformed(evt);
}
});

jButton9.setText("3");
jButton9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton9ActionPerformed(evt);
}
});

jButton10.setText("5");
jButton10.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton10ActionPerformed(evt);
}
});

jButton11.setText("6");
jButton11.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton11ActionPerformed(evt);
}
});

jButton12.setText("7");
jButton12.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton12ActionPerformed(evt);
}
});

jButton13.setText("8");
jButton13.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton13ActionPerformed(evt);
}
});

jButton14.setText("9");
jButton14.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton14ActionPerformed(evt);
}
});

jButton15.setText("0");
jButton15.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton15ActionPerformed(evt);
}
});

jButton16.setText("+");
jButton16.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton16ActionPerformed(evt);
}
});

jButton17.setText("-");
jButton17.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton17ActionPerformed(evt);
}
});

jButton18.setText("^");
jButton18.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton18ActionPerformed(evt);
}
});

jButton19.setText("*");
jButton19.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton19ActionPerformed(evt);
}
});

jButton20.setText("/");
jButton20.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton20ActionPerformed(evt);
}
});

jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);

jButton21.setText("=");
jButton21.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton21ActionPerformed(evt);
}
});

jButton22.setText("Limpiar");
jButton22.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton22ActionPerformed(evt);
}
});

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton6))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton7))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton4)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jButton5, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGap(37, 37, 37)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jButton12)
.addComponent(jButton21))))
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 125, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton8)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton9))
.addGroup(layout.createSequentialGroup()
.addComponent(jButton10)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton11))
.addGroup(layout.createSequentialGroup()
.addComponent(jButton13)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton14))
.addComponent(jButton15)
.addComponent(jButton22))
.addGap(52, 52, 52)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton16, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton17, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton18, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton19, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton20, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addContainerGap(33, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton16)
.addComponent(jButton6)
.addComponent(jButton8)
.addComponent(jButton9)
.addComponent(jButton1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton17)
.addComponent(jButton7)
.addComponent(jButton10)
.addComponent(jButton11)
.addComponent(jButton2))
.addGap(6, 6, 6)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton18)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton19)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton20))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton3)
.addComponent(jButton12)
.addComponent(jButton13)
.addComponent(jButton14))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton5))
.addComponent(jButton15))))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 28, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(26, 26, 26))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton21)
.addComponent(jButton22))
.addGap(140, 140, 140))))
);
}//

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.coseno(r);
jTextArea1.setText("Coseno igual :\n "+r);
aux = "";
jTextField1.setText(aux);
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.seno(r);
jTextArea1.setText("Seno igual :\n "+r);
aux = "";
jTextField1.setText(aux);
}

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 1;
jTextField1.setText(aux);
}

private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 2;
jTextField1.setText(aux);
}

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 3;
jTextField1.setText(aux);
}

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 4;
jTextField1.setText(aux);
}

private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 5;
jTextField1.setText(aux);
}

private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 6;
jTextField1.setText(aux);
}

private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 7;
jTextField1.setText(aux);
}

private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 8;
jTextField1.setText(aux);
}

private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 9;
jTextField1.setText(aux);
}

private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 0;
jTextField1.setText(aux);
}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.tangente(r);
jTextArea1.setText("Tangente igual :\n "+r);
aux = "";
jTextField1.setText(aux);
}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.raiz(r);
jTextArea1.setText("Raiz igual :\n "+r);
aux = "";
jTextField1.setText(aux);
}

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.logaritmo(r);
jTextArea1.setText("Logaritmo igual :\n "+r);
aux = "";
jTextField1.setText(aux);
}

private void jButton16ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "+";
aux="";
jTextField1.setText("");
}

private void jButton17ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "-";
aux="";
jTextField1.setText("");
}

private void jButton18ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "^";
aux="";
jTextField1.setText("");
}

private void jButton19ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "*";
aux="";
jTextField1.setText("");
}

private void jButton20ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "/";
aux="";
jTextField1.setText("");
}

private void jButton21ActionPerformed(java.awt.event.ActionEvent evt) {
if(aux2 == "+"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La suma es: \n" +Operaciones.suma(x, r));
}

if(aux2 == "-"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La resta es:\n" +Operaciones.resta(x,r));
}

if(aux2 == "^"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La potencia es:\n" +Operaciones.exponente(x, r));
}

if(aux2 == "*"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La multiplicacion es:\n" +Operaciones.multiplicacion(x, r));
}

if(aux2 == "/"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La division es:\n" +Operaciones.division(x,r));
}
}

private void jButton22ActionPerformed(java.awt.event.ActionEvent evt) {
aux="";
jTextField1.setText("");
}

public String aux = "";
public String aux2 = "";
double x;
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton10;
private javax.swing.JButton jButton11;
private javax.swing.JButton jButton12;
private javax.swing.JButton jButton13;
private javax.swing.JButton jButton14;
private javax.swing.JButton jButton15;
private javax.swing.JButton jButton16;
private javax.swing.JButton jButton17;
private javax.swing.JButton jButton18;
private javax.swing.JButton jButton19;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton20;
private javax.swing.JButton jButton21;
private javax.swing.JButton jButton22;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JButton jButton6;
private javax.swing.JButton jButton7;
private javax.swing.JButton jButton8;
private javax.swing.JButton jButton9;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
// End of variables declaration

}

Operaciones con Matrices

import javax.swing.JOptionPane;
import java.text.DecimalFormat;

public class Matriz {
public int numeroFilas;
public int numeroColumnas;
public double [][]matriz;

public Matriz(){
}

public Matriz(int nF, int nC){

numeroFilas=nF;
numeroColumnas=nC;
matriz=new double[numeroFilas][numeroColumnas];//
for(int i=0;i < numeroFilas;i++)
for(int j=0; j < numeroColumnas; j++)
matriz [i][j]=0;
}

public Matriz suma(Matriz b){
Matriz resultado;
if((this.numeroFilas == b.numeroFilas)&& (this.numeroColumnas == b.numeroColumnas)){
resultado = new Matriz(this.numeroFilas, this.numeroColumnas);
for(int i=0; i < this.numeroFilas; i++)
for(int j=0; j < this.numeroColumnas; j++)
resultado.matriz[i][j] = this.matriz[i][j]+ b.matriz[i][j];
return resultado;
}
else
System.out.println("NO ES VALIDA LAS DIMENSIONES DE LAS MATRICES");
resultado=null;
return resultado;
}

/**
* Metodo de resta de matrices
* @return matriz resultado de resta
*/
public Matriz resta(Matriz b){
Matriz resultado;
if ((this.numeroFilas == b.numeroFilas)&(this.numeroFilas == b.numeroColumnas)){
resultado = new Matriz (this.numeroFilas,this.numeroColumnas);//construyo la caja donde almaceno el resultado
for(int i = 0;i < this.numeroFilas;i++)
for(int j=0;j < this.numeroColumnas;j++)
resultado.matriz[i][j] = this.matriz[i][j]-b.matriz[i][j];
return resultado;
}

else{
System.out.println("NO ES VALIDA LAS DIMENSIONES DE LAS MATRICES");
resultado=null;
return resultado;
}
}


/**
* Metodo para transpuesta de una matriz
* @return
*/
//el numero de filas se cambia al numero de columnas

public Matriz Transpuesta(){
Matriz resultado;
resultado=new Matriz(this.numeroColumnas,this.numeroFilas);
for(int i=0; i < this.numeroFilas; i++)
for(int j=0; j < this.numeroColumnas; j++)
resultado.matriz[j][i]=this.matriz[i][j];
return resultado;
}

/**
* Metodo para multiplicaci�n entre matrices
* @return
*/
public Matriz Multiplicacion(Matriz b){
Matriz resultado;
if(this.numeroColumnas==b.numeroFilas){
resultado=new Matriz(this.numeroFilas, b.numeroColumnas);
for(int i=0; i < this.numeroFilas; i++){
for(int j=0; j < b.numeroColumnas; j++){
for(int k=0; k < this.numeroColumnas; k++)
resultado.matriz[i][j]+=this.matriz[i][k]*b.matriz[k][j];
}
}
return resultado;
}
else
System.out.println("NO ES VALIDA LAS DIMENSIONES DE LAS MATRICES");
resultado=null;
return resultado;
}

public Matriz inversa()
{
Matriz resultado = new Matriz ();
resultado.matriz[0][0]=((this.matriz[1][1]*this.matriz[2][2])-(this.matriz[2][1]*this.matriz[1][2]));
resultado.matriz[0][1]=((this.matriz[1][0]*this.matriz[2][2])-(this.matriz[2][0]*this.matriz[1][2]));
resultado.matriz[0][2]=((this.matriz[1][0]*this.matriz[2][1])-(this.matriz[2][0]*this.matriz[1][1]));
resultado.matriz[1][0]=((this.matriz[0][1]*this.matriz[2][2])-(this.matriz[2][1]*this.matriz[0][2]));
resultado.matriz[1][1]=((this.matriz[1][0]*this.matriz[2][2])-(this.matriz[2][0]*this.matriz[1][2]));
resultado.matriz[1][2]=((this.matriz[0][0]*this.matriz[2][1])-(this.matriz[2][0]*this.matriz[0][1]));
resultado.matriz[2][0]=((this.matriz[0][1]*this.matriz[1][2])-(this.matriz[1][1]*this.matriz[0][2]));
resultado.matriz[2][1]=((this.matriz[0][0]*this.matriz[1][2])-(this.matriz[1][0]*this.matriz[0][2]));
resultado.matriz[2][2]=((this.matriz[0][0]*this.matriz[1][1])-(this.matriz[1][0]*this.matriz[0][1]));
return resultado;
}

public void leer(){
String aux;
for(int i=0; i < this.numeroFilas; i++){
for(int j=0; j < this.numeroColumnas; j++){
aux = JOptionPane.showInputDialog(null,"INGRESO DE VALORES","INGRESE EL VALOR: "+(i+1)+" , "+(j+1),JOptionPane.DEFAULT_OPTION);
this.matriz[i][j]=Double.parseDouble(aux);
}
}
}

public String toString(){

String aux="\n";
DecimalFormat df = new DecimalFormat("0.0000");
for(int i=0; i < numeroFilas; i++){
for(int j=0; j < numeroColumnas; j++){
aux+=df.format(matriz[i][j])+" ";
}
aux+="\n";
}
aux+=" ";
return aux;
}
}




public class OperacionesMatrices extends javax.swing.JApplet {

/** Initializes the applet OperacionesMatrices */
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}

/** This method is called from within the init() method to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
//
private void initComponents() {

jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jLabel6 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jLabel7 = new javax.swing.JLabel();
jLabel8 = new javax.swing.JLabel();
jTextField3 = new javax.swing.JTextField();
jTextField4 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();

jLabel1.setText("Operaciones con Matrices");

jLabel2.setText("Operaciones Binarias");

jLabel3.setText("Matriz #1");

jLabel4.setText("Matriz #2");

jLabel5.setText("Numero de Filas");

jLabel6.setText("Numero de Columnas");

jTextField1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField1ActionPerformed(evt);
}
});

jTextField2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField2ActionPerformed(evt);
}
});

jLabel7.setText("Numero Filas");

jLabel8.setText("Numero Columnas");

jTextField3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField3ActionPerformed(evt);
}
});

jButton1.setText("Suma");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Resta");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});

jButton3.setText("Multiplicación");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});

jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);

jButton4.setText("Transpuesta");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});

jButton5.setText("Inversa");
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGap(65, 65, 65)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
.addGap(52, 52, 52)
.addComponent(jButton2)
.addGap(18, 18, 18)
.addComponent(jButton3)
.addGap(18, 18, 18)
.addComponent(jButton4))
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 138, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(jLabel5)
.addComponent(jLabel6))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jTextField2)
.addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 44, Short.MAX_VALUE))
.addGap(58, 58, 58)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel7)
.addComponent(jLabel8)
.addComponent(jLabel4))))
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(39, 39, 39)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField3)
.addComponent(jTextField4, javax.swing.GroupLayout.DEFAULT_SIZE, 47, Short.MAX_VALUE)))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jButton5)))
.addGap(21, 21, 21))
.addComponent(jLabel2)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 521, Short.MAX_VALUE)))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(40, 40, 40)
.addComponent(jButton1)))
.addGap(22, 22, 22))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(26, 26, 26)
.addComponent(jLabel2))
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(jLabel4))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel5)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel6)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel8))
.addGap(31, 31, 31)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2)
.addComponent(jButton3)
.addComponent(jButton4)
.addComponent(jButton5)))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(58, 58, 58)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(49, 49, 49)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(57, Short.MAX_VALUE))
);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
}//

private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jTextField2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jTextField3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();
String aux1="";
int nF = Integer.parseInt(aux);
aux = jTextField2.getText();
int nC = Integer.parseInt(aux);
m1 = new Matriz(nF,nC);
m1.leer();
aux1 += m1.toString();
aux = jTextField3.getText();
nF = Integer.parseInt(aux);
aux = jTextField4.getText();
nC = Integer.parseInt(aux);
m2 = new Matriz(nF,nC);
m2.leer();
aux1 += m2.toString();
jTextArea1.setText("Suma de Matrices: \n"+aux1+(m1.suma(m2)).toString());
}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();
String aux1="";
int nF = Integer.parseInt(aux);
aux = jTextField2.getText();
int nC = Integer.parseInt(aux);
m1 = new Matriz(nF,nC);
m1.leer();
aux1 += m1.toString();
aux = jTextField3.getText();
nF = Integer.parseInt(aux);
aux = jTextField4.getText();
nC = Integer.parseInt(aux);
m2 = new Matriz(nF,nC);
m2.leer();
aux1 += m2.toString();
jTextArea1.setText("Resta de Matrices: \n"+aux1+(m1.resta(m2)).toString());
}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();
String aux1="";
int nF = Integer.parseInt(aux);
aux = jTextField2.getText();
int nC = Integer.parseInt(aux);
m1 = new Matriz(nF,nC);
m1.leer();
aux1 += m1.toString();
aux = jTextField3.getText();
nF = Integer.parseInt(aux);
aux = jTextField4.getText();
nC = Integer.parseInt(aux);
m2 = new Matriz(nF,nC);
m2.leer();
aux1 += m2.toString();
jTextArea1.setText("Multiplicacion de Matrices: \n"+aux1+(m1.Multiplicacion(m2)).toString());
}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();
String aux1="";
int nF = Integer.parseInt(aux);
aux = jTextField2.getText();
int nC = Integer.parseInt(aux);
m1 = new Matriz(nF,nC);
m1.leer();
aux += m1.toString();
jTextArea1.setText("Transpuesta de la matriz uno es: \n"+aux1+(m1.Transpuesta()).toString());
}

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();
String aux1="";
int nF = Integer.parseInt(aux);
aux = jTextField2.getText();
int nC = Integer.parseInt(aux);
m1 = new Matriz(nF,nC);
m1.leer();
aux1 += m1.toString();
jTextArea1.setText("Inversa de la matriz uno es: \n"+aux1+(m1.inversa()).toString());
}

public Matriz m1;
public Matriz m2;
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JTextField jTextField4;
// End of variables declaration
}

Suma de Matrices

/**
Initializes the applet suma
*/
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}
});
}
catch (Exception ex) {
ex.printStackTrace();
}
}
/** This method is called from within the init() method to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
//
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jScrollPane2 = new javax.swing.JScrollPane();
jTextArea2 = new javax.swing.JTextArea();
jScrollPane3 = new javax.swing.JScrollPane();
jTextArea3 = new javax.swing.JTextArea();
jLabel1.setBackground(new java.awt.Color(0, 153, 255));
jLabel1.setFont(new java.awt.Font("Jokerman", 0, 12)); // NOI18N
jLabel1.setForeground(new java.awt.Color(255, 153, 204));
jLabel1.setText("SUMA DE MATRICES");
jLabel2.setText("Nro de Filas: ");
jLabel3.setText("Nro de Columnas: ");
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);
jButton1.setText("Leer Matriz 1");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setText("Leer Matriz 2");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setActionCommand("jButton3");
jButton3.setLabel("Resultado");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
jTextField1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField1ActionPerformed(evt);
}
});
jButton4.setText("Imprimir M1");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jButton5.setText("Imprimir M2");
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});
jTextArea2.setColumns(20);
jTextArea2.setRows(5);
jScrollPane2.setViewportView(jTextArea2);
jTextArea3.setColumns(20);
jTextArea3.setRows(5);
jScrollPane3.setViewportView(jTextArea3);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(51, 51, 51)
.addGroupjPanel1Layout.createParallelGroupjavax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton4, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 108, Short.MAX_VALUE)
.addComponent(jScrollPane2, javax.swing.GroupLayout.Alignment.TRAILING, 0, 0, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, 108, Short.MAX_VALUE)
.addComponent(jLabel3))
.addGap(48, 48, 48))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 171, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 119, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(10, 10, 10)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton5, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addGap(37, 37, 37)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, 0, 0, Short.MAX_VALUE)
.addComponent(jButton3)))
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField1))
.addComponent(jTextField2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 57, Short.MAX_VALUE)))
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(24, 24, 24)
.addComponent(jLabel1)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
.addGap(19, 19, 19)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2).addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(14, 14, 14)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 19, Short.MAX_VALUE).addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jButton2)
.addComponent(jButton1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton5).addComponent(jButton4))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(jPanel1Layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton3).addGap(18, 18, 18).addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
}//
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();//
nF = Integer.parseInt(aux);//num. filas
aux = jTextField2.getText();
nC = Integer.parseInt(aux);//num columnas
n= new Matriz(nF,nC);
n.leerMatriz();//ingreso datos
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {

m = m.suma(n);
jTextArea1.setText(m.toString());//imprimir matriz
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux = jTextField1.getText();//captura el texto y lo almacena en variable aux aparec en el boton jtex field 1
nF = Integer.parseInt(aux);//num. filas
aux = jTextField2.getText();
nC = Integer.parseInt(aux);//num columnas
m= new Matriz(nF,nC);
m.leerMatriz();//ingreso de datos
}
private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
jTextArea2.setText(m.toString());//imprimir matriz
}
private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
jTextArea3.setText(n.toString());//imprimir matriz
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JScrollPane jScrollPane3;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextArea jTextArea2;
private javax.swing.JTextArea jTextArea3;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
public int nF;
public int nC;
public Matriz m,n;
}

Apleets

Applet

Un applet es un componente de una aplicación que se ejecuta en el contexto de otro programa, por ejemplo un navegador web. El applet debe ejecutarse en un contenedor, que lo proporciona un programa anfitrión, mediante un plugin, o en aplicaciones como teléfonos móviles que soportan el modelo de programación por applets.

Un Java applet es un código JAVA que carece de un método main, por eso se utiliza principalmente para el trabajo de páginas web, ya que es un pequeño programa que es utilizado en una página HTML y representado por una pequeña pantalla gráfica dentro de ésta.

Por otra parte, la diferencia entre una aplicación JAVA y un applet radica en cómo se ejecutan. Para cargar una aplicación JAVA se utiliza el intérprete de JAVA (pcGRASP de Auburn University, Visual J++ de Microsoft, Forte de Sun de Visual Café). En cambio, un applet se puede cargar y ejecutar desde cualquier explorador que soporte JAVA (Netscape, Internet Explorer, Mozilla Firefox...).

¿Cómo se ejecuta?

A diferencia de un programa, un applet no puede ejecutarse de manera independiente, ofrece información gráfica y a veces interactúa con el usuario, típicamente carece de sesión y tiene privilegios de seguridad restringidos. Un applet normalmente lleva a cabo una función muy específica que carece de uso independiente. El término fue introducido en AppleScript en 1993.

Ejemplos comunes de applets son las Java applets y las animaciones Flash. Otro ejemplo es el Windows Media Player utilizado para desplegar archivos de video incrustados en los navegadores como el Internet Explorer. Otros plugins permiten mostrar modelos 3D que funcionan con una applet.

Métodos del ciclo de vida

Como ya se ha indicado una applet no tiene un ciclo de vida tan "sencillo" como el de una aplicación, que simplemente se ejecuta hasta que finaliza su método main().

La siguiente figura modeliza el ciclo de vida de una applet:

Imagen 11: Ciclo de vida de una applet

Cada círculo representa una fase en el ciclo de vida de la applet. Las flechas representan transiciones y el texto representa la acción que causa la transición. Cada fase está marcada con una invocación a un método de la applet:

• void init(); Es invocado cuando se carga la applet. Aquí se suelen introducir las iniciaciones que la applet necesite.
• void start();Es invocado cuando la applet, después de haber sido cargada, ha sido parada (cambio de página Web, minimización del navegador,...), y de nuevo activada (vuelta a la página, restauración del navegador,...). Se informa a la applet de que tiene que empezar su funcionamiento.
• void stop(); Es invocado para informar a la applet de que debe de parar su ejecución. Así una applet que utilice threads, debería detenerlos en el código de este método.
• void destroy();Es invocado para informar a la applet de que su espacio está siendo solicitado por el sistema, es decir el usuario abandona el navegador. La applet debe de aprovechar este momento para liberar o destruir los recursos que está utilizando.
• void paint(); Es invocado cada vez que hay que el navegador redibuja la applet.

Al crear una applet no es necesario implementar todos estos métodos. De hecho habrá applets que no los necesiten.

Cuando un navegador carga una página Web que contiene una applet, suele mostrar en su parte inferior un mensaje como:

initializing... starting...

Esto indica que la applet, se está cargando:

1. Una instancia de la clase applet es creada.

2. La applet es iniciada, mediante su método init().

3. La applet empieza a ejecutarse, mediante su método start().

Cuando el usuario se encuentra con una página Web, que contiene una applet y salta a otra página, entonces la applet se detiene invocando a su método stop(). Si el usuario retorna a la página donde reside la applet, ésta vuelve a ejecutarse nuevamente invocando a su método start().

Cuando el usuario sale del navegador la applet tiene un tiempo para finalizar su ejecución y hacer una limpieza final, mediante el método destroy().

Vector Unitario, Producto escalar y Producto cruz

public class Vector3D extends Matriz {
double coorX;
double coorY;
double coorZ;

public Vector3D (){
super(1,3);
}

public Vector3D(double x, double y, double z){
super(1,3);
this.matriz[0][0] = x;
this.matriz[0][1] = y;
this.matriz[0][2] = z;
coorX = x;
coorY = y;
coorZ = z;
}

public double magnitud(){
double resultado = 0;
//double suma;
for(int i = 0; i < 3; i++ ){
resultado += this.matriz[0][i]*this.matriz[0][i];
}
resultado = Math.sqrt(resultado);
return resultado;
}

public double magnitud1(){
double resultado;
resultado = this.coorX*this.coorX+this.coorY*this.coorY+this.coorZ*this.coorZ;
resultado = Math.sqrt(resultado);
return resultado;
}


public Vector3D unitario(){
Vector3D unitario = new Vector3D();
for(int i = 0; i < 3; i++)
unitario.matriz[0][i] = this.matriz[0][i]/this.magnitud();
return unitario;
}

public double productoEscalar(Vector3D v){
double resultado = 0;
for(int i = 0; i < 3; i++)
resultado += this.matriz[0][i]*v.matriz[0][i];

return resultado;
}
public double magnitud2(){
double resultado;
resultado = this.coorY*this.coorZ-this.coorY*this.coorZ;

return resultado;

}

public Vector3D productoCruz (Vector3D v){
Vector3D productocruz;
productocruz = new Vector3D();

productocruz.matriz[0][0] = this.matriz[0][1]*v.matriz[0][2]-this.matriz[0][2]*v.matriz[0][1];
productocruz.matriz[0][1] = this.matriz[0][0]*v.matriz[0][2]-this.matriz[0][2]*v.matriz[0][0];
productocruz.matriz[0][2] = this.matriz[0][0]*v.matriz[0][1]-this.matriz[0][1]*v.matriz[0][0];
return productocruz;
}

public static void main(String args[]){
Vector3D v1 = new Vector3D(-1, 1, -1);
Vector3D v2 = new Vector3D(0,2,0);
System.out.println(v1+"\n"+v2+"\n suma \n"+(v1.suma(v2)));
System.out.println("Coordenada x "+v1.coorX);
System.out.println(v1.magnitud()+"\n"+v1.magnitud1());
System.out.println("Vector Unitario"+ v1.unitario());
System.out.println((v1.unitario()).magnitud());
System.out.println("Producto escalar "+v1.productoEscalar(v2));
System.out.println("Producto cruz "+v1.productoCruz (v2));
}
}

Prueba

public class Matriz {
public int numeroFilas;
public int numeroColumnas;
public double [][]matriz;

public Matriz(){//crear una matriz sin dimensiones
}

public Matriz(int nF, int nC){
numeroFilas=nF;
numeroColumnas=nC;
matriz=new double [numeroFilas][numeroColumnas];

for(int i=0; i for(int j=0; j matriz[i][j]=0;
}

public void leer(){
int i;
for(i = 0; i < this.numeroFilas; i++ ){
for(int j = 0;j < this.numeroColumnas; j++){
String aux;
aux = JOptionPane.showInputDialog(null,"Ingrese el Valor "+"["+(i+1)+","+(j+1)+"]","Ingreso de Valores",
JOptionPane.DEFAULT_OPTION);
this.matriz[i][j] = Double.parseDouble(aux);
}
}
}




/**
* metodo para transpuesta matriz
* @return
*/
public Matriz transpuesta(){
Matriz resultado;
resultado= new Matriz(this.numeroColumnas,this.numeroFilas);
for(int i=0; i< this.numeroFilas;i++)
for(int j=0; j< this.numeroColumnas;j++ )
resultado.matriz[j][i]= this.matriz[i][j];
return resultado;

}





public Matriz multiplicacion(Matriz b){
Matriz resultado;


resultado=new Matriz(this.numeroFilas,b.numeroColumnas);
for(int i=0; i for(int j=0; j for(int k=0; k resultado.matriz[i][j] += (this.matriz[i][k]*b.matriz[k][j]);
}
}
return resultado;



}

public String toString(){
String aux="\n[\n";
for(int i=0; i for(int j=0; j aux+=matriz[i][j]+" ";
}
aux+="\n";
}
aux+="]";
return aux;
}
}