Codigo Ensamblador En Java

package ensambueno;

import java.io.*;

import java.util.Vector;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.StringTokenizer;

public final class Main extends JFrame {

String ruta="";

String vector, codigo = "",vector2;

String a,b;

JLabel L1;

JTextField TF;

JTextArea TA,TA2;

String a1, a2, a3;

String x1, x2, x3, x4;

JScrollPane S1,S2;

JButton b1,b2,b3,b4,b5;

public Main (){

super("");

L1=new JLabel("Codigo");

b1=new JButton("Guardar");

b2=new JButton("Ensamblar");

b3=new JButton("Salir");

b4=new JButton("Abrir");

TA=new JTextArea(25,60);

S1=new JScrollPane(TA);

JPanel P1=new JPanel();

P1.add(b4);

P1.add(b1);

P1.add(b2);

P1.add(b3);

JPanel P2=new JPanel();

P2.add(S1);

this.add(P1,BorderLayout.NORTH);

this.add(L1,BorderLayout.CENTER);

this.add(P2,BorderLayout.SOUTH);

this.setSize(900,550);

this.setVisible(true);

this.setLocationRelativeTo(null);

b1.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent envento){

JFileChooser g=new JFileChooser();

int r=g.showSaveDialog(null);

if(r==JFileChooser.CANCEL_OPTION)

return;

ruta="";

ruta +=g.getSelectedFile();

File archivo=new File(ruta);

try{

BufferedWriter wri=new BufferedWriter(new FileWriter(archivo)); //f////Para leer el archivo

wri.write(TA.getText());

wri.close();

}catch(IOException error ){

} }

});

b2.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent enven){

File archivo = null;

archivo=new File(ruta);

try{

BufferedWriter wri=new BufferedWriter(new FileWriter(archivo));

wri.write(TA.getText());

wri.close();

}catch(IOException error ){

}

Main s=new Main (ruta);

}

});

b3.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent envent){

System.exit(0);

}

});

b4.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

ruta="";

contador=1;

JFileChooser s=new JFileChooser();

int r=s.showOpenDialog(null);

if(r==JFileChooser.CANCEL_OPTION)

return;

ruta+=s.getSelectedFile();

File archivo=new File(ruta);

try{

BufferedReader b=new BufferedReader(new FileReader(archivo));

String linea;

while((linea=b.readLine())!=null){

TA.append(linea);

TA.append("\n");

contador++;

}

}

catch(IOException er){

JOptionPane.showMessageDialog(null,"error en lectura de archivo");

}

}

});

}

String linea,ensam1,ensam2,ensam3;

int h=0;

String datos2;

String reg2="",reg="",Resultado = "";

String e,s,c,c1,t,y,u,o,m,p,ee,ss;

String xxx,xxx1,xxx2,xxx3,xxx4,xxx5,mmm,oo;

String oo2;

int contador,conta;

public Main (String as){

super("ENSAMBLAR");

TA2=new JTextArea(20,50);

S2=new JScrollPane(TA2);

b1=new JButton("GUARDAR");

b2=new JButton("OBTENER SALTOS");

this.add(b2,BorderLayout.NORTH);

this.add(S2,BorderLayout.CENTER);

this.add(b1,BorderLayout.SOUTH);

this.setSize(700,500);

this.setVisible(true);

this.setLocationRelativeTo(null);

b1.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent envento){

File archivo=new File("NUEVO.exe");

try{

BufferedWriter wri=new BufferedWriter(new FileWriter(archivo)); //f////Para leer el archivo

wri.write(TA2.getText());

wri.close();

}catch(IOException error ){

} }

});

b2.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent envento){

TA2.setText("");

String linea ="";

String ch[] = new String[40];

String ch1[] = new String[40];

Vector band = new Vector();

Vector band2 = new Vector();

int cont = 0,i;

int suma=0;

int res=0;

String num="";

int mas;

int tamaño;

try {

FileReader fr = new FileReader("NUEVO.EXE");

BufferedReader origen = new BufferedReader(fr);

while ((linea = origen.readLine()) != null) {

if(linea !=null){

band.addElement(linea);

band2.addElement(linea);

}

}

for (i = 1; i < band.size(); i++) {

if (band2 != null) {

vector2 = (String) band.elementAt(i);

ch[i]=vector2; }

}

for (i = 1; i < band.size(); i++) {

if (band != null) {

vector = (String) band.elementAt(i);

x1 = vector.substring(0, 2);

x2 = vector.substring(0, 3);

if (x1.equals("Je") || x2.equals("Jae") || x2.equals("Jbe")|| x2.equals("Jne")){

TA2.append("\n "+vector);

x3 = vector.substring(3, vector.length())+":";

x4 = vector.substring(4, vector.length()) + ":";

...