JOptionPane in NetBeans
Could someone please have a look at my NetBeans code below and tell me why the program freezes if you click on the Quit menu item under the File menu. I tried commenting out the JOptionPane code and it works fine so its something to do with that, but i can't figure out what.
/*
* mapperGUI.java
*
* Created on 06 December 2005, 22:11
*/
package my.sitemapper.pkg;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.swing.text.*;
import java.text.*;
import java.util.*;
import javax.swing.undo.*;
import javax.swing.event.*;
import java.awt.print.*;
import javax.swing.JOptionPane;
/**
*
* @author Faz
*/
public class mapperGUI extends javax.swing.JFrame implements ActionListener {
/** Creates new form mapperGUI */
public mapperGUI() {
initComponents();
jButton1.addActionListener(this);
jButton2.addActionListener(this);
jButton3.addActionListener(this);
jButton4.addActionListener(this);
jButton5.addActionListener(this);
jButton6.addActionListener(this);
jTextField1.addActionListener(this);
jMenuItem1.addActionListener(this);
jMenuItem2.addActionListener(this);
jMenuItem3.addActionListener(this);
jMenuItem4.addActionListener(this);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
private void initComponents() {
jToolBar1 = new javax.swing.JToolBar();
jPanel1 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jPanel2 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jSeparator1 = new javax.swing.JSeparator();
jButton3 = new javax.swing.JButton();
jStatusBar1 = new com.zfqjava.swing.JStatusBar();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenuItem3 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
jMenuItem4 = new javax.swing.JMenuItem();
jMenu3 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Site Analyser & Mapper (SAM)");
setAlwaysOnTop(true);
setBackground(new java.awt.Color(102, 204, 255));
jPanel1.setBackground(new java.awt.Color(153, 204, 255));
jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.LOWERED));
jPanel1.setName("Quick Functions");
jButton1.setText("Save Map");
jButton2.setText("Load Map");
jButton4.setText("Change Style");
jButton5.setText("New Target");
jButton6.setText("Exit");
org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jButton1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 99, Short.MAX_VALUE)
.add(jButton5, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 99, Short.MAX_VALUE)
.add(jButton2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 97, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jButton4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 99, Short.MAX_VALUE)
.add(jButton6, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 99, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
jPanel1Layout.linkSize(new java.awt.Component[] {jButton1, jButton2, jButton4, jButton5}, org.jdesktop.layout.GroupLayout.HORIZONTAL);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jButton5, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(27, 27, 27)
.add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(30, 30, 30)
.add(jButton2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(28, 28, 28)
.add(jButton4, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 39, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 31, Short.MAX_VALUE)
.add(jButton6, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 39, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
jPanel1Layout.linkSize(new java.awt.Component[] {jButton1, jButton2, jButton4, jButton5}, org.jdesktop.layout.GroupLayout.VERTICAL);
jPanel2.setBackground(new java.awt.Color(153, 204, 255));
jPanel2.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.LOWERED));
jLabel1.setFont(new java.awt.Font("Tahoma", 3, 12));
jLabel1.setText("Search Map:");
jButton3.setText("Go");
org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel2Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel2Layout.createSequentialGroup()
.add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 93, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 160, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jButton3))
.add(org.jdesktop.layout.GroupLayout.TRAILING, jSeparator1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 341, Short.MAX_VALUE))
.addContainerGap())
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel2Layout.createSequentialGroup()
.addContainerGap(286, Short.MAX_VALUE)
.add(jSeparator1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 10, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 23, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jButton3))
.addContainerGap())
);
jStatusBar1.setBorderPainted(true);
jStatusBar1.setText("Ready");
jMenu1.setText("File");
jMenuItem1.setText("Open");
jMenu1.add(jMenuItem1);
jMenuItem2.setText("Save");
jMenu1.add(jMenuItem2);
jMenuItem3.setText("Quit");
jMenu1.add(jMenuItem3);
jMenuBar1.add(jMenu1);
jMenu2.setText("Map");
jMenuItem4.setText("Change Style");
jMenu2.add(jMenuItem4);
jMenuBar1.add(jMenu2);
jMenu3.setText("Help");
jMenuBar1.add(jMenu3);
setJMenuBar(jMenuBar1);
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jToolBar1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 526, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(14, 14, 14)
.add(jPanel2)
.addContainerGap())
.add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
.addContainerGap()
.add(jStatusBar1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 516, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
.add(jToolBar1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(jPanel2)
.add(jPanel1, 0, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jStatusBar1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
pack();
}// </editor-fold>
public void actionPerformed(ActionEvent e) {
Object eventSource = e.getSource();
if (eventSource instanceof JMenuItem) {
String label = (String) e.getActionCommand();
if (label.equals("Quit")) {
int confirm = JOptionPane.showConfirmDialog(null,
"Would you like to save?",
"Exit Application",
JOptionPane.YES_NO_CANCEL_OPTION);
if( confirm == JOptionPane.YES_OPTION) {
//jStatusBar1.setText("Exiting and Saving file");
dispose();
System.exit(0);
}
else if ( confirm == JOptionPane.NO_OPTION) {
//jStatusBar1.setText("Exiting Without Saving file");
dispose();
System.exit(0);
}
else {}
}
}
else {
JButton button = (JButton) e.getSource();
String label = button.getText();
if (label.equals("Exit")) {
dispose();
System.exit(0);
}
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new mapperGUI().setVisible(true);
}
});
}
// 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.JButton jButton6;
private javax.swing.JLabel jLabel1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenu jMenu3;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JMenuItem jMenuItem4;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JSeparator jSeparator1;
private com.zfqjava.swing.JStatusBar jStatusBar1;
private javax.swing.JTextField jTextField1;
private javax.swing.JToolBar jToolBar1;
// End of variables declaration
}
