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
}