Ho scritto questo programma in JBuilder 2008(può essere visto anche con un altro compilatore); non riesco a far funzionare il pulsante "OFF", cioè quando clicco su questo pulsante mi esce dal programma.....Qualcuno sa come si fa?
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
public class jfcalc extends JFrame {
private final JTextField textField = new JTextField();
private final JButton acButton = new JButton();
private final JButton acButton_1 = new JButton();
private final JButton button = new JButton();
private final JButton acButton_5 = new JButton();
private final JButton acButton_6 = new JButton();
private final JButton acButton_2 = new JButton();
private final JButton acButton_3 = new JButton();
private final JButton acButton_4 = new JButton();
private final JButton acButton_7 = new JButton();
private final JButton acButton_8 = new JButton();
private final JButton acButton_9 = new JButton();
private final JButton acButton_10 = new JButton();
private final JButton acButton_11 = new JButton();
private final JButton acButton_12 = new JButton();
private final JButton acButton_13 = new JButton();
private final JButton acButton_14 = new JButton();
private final JButton acButton_15 = new JButton();
private final JButton acButton_16 = new JButton();
private final JButton acButton_17 = new JButton();
private final JButton acButton_18 = new JButton();
private final JButton acButton_19 = new JButton();
private final JButton acButton_20 = new JButton();
private final JButton acButton_21 = new JButton();
private String b;
private String a;
private String c;
/*
* Launch the application
* @param args
*/
public static void main(String args[]) {
try {
jfcalc frame = new jfcalc();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Create the frame
*/
public jfcalc() {
super();
setBounds(100, 100, 500, 375);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
try {
jbInit();
} catch (Throwable e) {
e.printStackTrace();
}
}
private void jbInit() throws Exception {
getContentPane().setLayout(null);
setTitle("Calcolatrice");
getContentPane().setBackground(Color.BLACK);
getContentPane().add(textField);
textField.setBounds(139, 22, 263, 20);
getContentPane().add(acButton);
acButton.setText("OFF");
acButton.setBounds(250, 60, 57, 26);
getContentPane().add(acButton_1);
acButton_1.addActionListener(new AcButton_1ActionListener());
acButton_1.setText("CANC");
acButton_1.setBounds(315, 60, 87, 26);
getContentPane().add(button);
button.setBounds(139, 60, 105, 26);
getContentPane().add(acButton_5);
acButton_5.addActionListener(new AcButton_5ActionListener());
acButton_5.setText("/");
acButton_5.setBounds(298, 115, 41, 26);
getContentPane().add(acButton_6);
acButton_6.setText("sqrt");
acButton_6.setBounds(345, 115, 57, 26);
getContentPane().add(acButton_2);
acButton_2.addActionListener(new AcButton_2ActionListener());
acButton_2.setText("8");
acButton_2.setBounds(190, 115, 41, 26);
getContentPane().add(acButton_3);
acButton_3.addActionListener(new AcButton_3ActionListener());
acButton_3.setText("9");
acButton_3.setBounds(240, 115, 41, 26);
getContentPane().add(acButton_4);
acButton_4.addActionListener(new AcButton_4ActionListener());
acButton_4.setText("7");
acButton_4.setBounds(139, 115, 41, 26);
getContentPane().add(acButton_7);
acButton_7.addActionListener(new AcButton_7ActionListener());
acButton_7.setText("4");
acButton_7.setBounds(140, 155, 41, 26);
getContentPane().add(acButton_8);
acButton_8.addActionListener(new AcButton_8ActionListener());
acButton_8.setText("5");
acButton_8.setBounds(190, 155, 41, 26);
getContentPane().add(acButton_9);
acButton_9.addActionListener(new AcButton_9ActionListener());
acButton_9.setText("6");
acButton_9.setBounds(240, 155, 41, 26);
getContentPane().add(acButton_10);
acButton_10.addActionListener(new AcButton_10ActionListener());
acButton_10.setText("*");
acButton_10.setBounds(298, 155, 41, 26);
getContentPane().add(acButton_11);
acButton_11.setText("%");
acButton_11.setBounds(345, 155, 57, 26);
getContentPane().add(acButton_12);
acButton_12.addActionListener(new AcButton_12ActionListener());
acButton_12.setText("1");
acButton_12.setBounds(139, 195, 41, 26);
getContentPane().add(acButton_13);
acButton_13.addActionListener(new AcButton_13ActionListener());
acButton_13.setText("2");
acButton_13.setBounds(190, 195, 41, 26);
getContentPane().add(acButton_14);
acButton_14.addActionListener(new AcButton_14ActionListener());
acButton_14.setText("3");
acButton_14.setBounds(240, 195, 41, 26);
getContentPane().add(acButton_15);
acButton_15.addActionListener(new AcButton_15ActionListener());
acButton_15.setText("-");
acButton_15.setBounds(298, 195, 41, 26);
getContentPane().add(acButton_16);
acButton_16.setText("M+");
acButton_16.setBounds(345, 195, 57, 26);
getContentPane().add(acButton_17);
acButton_17.addActionListener(new AcButton_17ActionListener());
acButton_17.setText("0");
acButton_17.setBounds(140, 235, 41, 26);
getContentPane().add(acButton_18);
acButton_18.setText("+/-");
acButton_18.setBounds(185, 235, 48, 26);
getContentPane().add(acButton_19);
acButton_19.setText(",");
acButton_19.setBounds(240, 235, 41, 26);
getContentPane().add(acButton_20);
acButton_20.addActionListener(new AcButton_20ActionListener());
acButton_20.setText("+");
acButton_20.setBounds(298, 235, 41, 26);
getContentPane().add(acButton_21);
acButton_21.addActionListener(new AcButton_21ActionListener());
acButton_21.setText("=");
acButton_21.setBounds(345, 235, 57, 26);
}
private class AcButton_12ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_12_actionPerformed(e);
}
}
private class AcButton_4ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e)
{
acButton_4_actionPerformed(e);
}
}
private class AcButton_13ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_13_actionPerformed(e);
}
}
private class AcButton_14ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_14_actionPerformed(e);
}
}
private class AcButton_17ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_17_actionPerformed(e);
}
}
private class AcButton_7ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_7_actionPerformed(e);
}
}
private class AcButton_8ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_8_actionPerformed(e);
}
}
private class AcButton_9ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_9_actionPerformed(e);
}
}
private class AcButton_2ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_2_actionPerformed(e);
}
}
private class AcButton_3ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_3_actionPerformed(e);
}
}
private class AcButton_1ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_1_actionPerformed(e);
}
}
private class AcButton_20ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_20_actionPerformed(e);
}
}
private class AcButton_21ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_21_actionPerformed(e);
}
}
private class AcButton_15ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_15_actionPerformed(e);
}
}
private class AcButton_10ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_10_actionPerformed(e);
}
}
private class AcButton_5ActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
acButton_5_actionPerformed(e);
}
}
protected void acButton_12_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_12.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_4_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_4.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_13_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_13.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_14_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_14.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_17_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_17.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_7_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_7.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_8_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_8.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_9_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_9.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_2_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_2.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_3_actionPerformed(ActionEvent e)
{
b = textField.getText() + acButton_3.getText();
jfcalc.this.textField.setText(b);
}
protected void acButton_1_actionPerformed(ActionEvent e)
{
jfcalc.this.textField.setText("");
}
protected void acButton_20_actionPerformed(ActionEvent e)
{
a = jfcalc.this.textField.getText();
jfcalc.this.textField.setText("");
c = acButton_20.getText();
}
protected void acButton_15_actionPerformed(ActionEvent e)
{
a = jfcalc.this.textField.getText();
jfcalc.this.textField.setText("");
c = acButton_15.getText();
}
protected void acButton_10_actionPerformed(ActionEvent e)
{
a = jfcalc.this.textField.getText();
jfcalc.this.textField.setText("");
c = acButton_10.getText();
}
protected void acButton_5_actionPerformed(ActionEvent e)
{
a = jfcalc.this.textField.getText();
jfcalc.this.textField.setText("");
c = acButton_5.getText();
}
protected void acButton_21_actionPerformed(ActionEvent e)
{
if(c=="+")
{
int conva = Integer.parseInt(a);
int convtext = Integer.parseInt(textField.getText());
conva = conva + convtext;
String z = String.valueOf(conva);
jfcalc.this.textField.setText(z);
}
else if(c=="-")
{
int conva = Integer.parseInt(a);
int convtext = Integer.parseInt(textField.getText());
conva = conva - convtext;
String z = String.valueOf(conva);
jfcalc.this.textField.setText(z);
}
else if(c=="*")
{
int conva = Integer.parseInt(a);
int convtext = Integer.parseInt(textField.getText());
conva = conva * convtext;
String z = String.valueOf(conva);
jfcalc.this.textField.setText(z);
}
else if(c=="/")
{
float conva = Integer.parseInt(a);
int convtext = Integer.parseInt(textField.getText());
conva = conva / convtext;
String z = String.valueOf(conva);
jfcalc.this.textField.setText(z);
}
}
}
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