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Simple SWING Example Very Helpful, For Me Anyway.

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Submitted on: 1/3/2015 5:07:00 PM
By: C.V. (from psc cd)  
Level: Beginner
User Rating: By 4 Users
Compatibility: Java (JDK 1.1), Java (JDK 1.2)
Views: 1648
 
     This little thingy here just demonstrates the very primitive use of SWING!!!!!!!!!!!!!!!!!!!!!!!!!
 
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//**************************************
// Name: Simple SWING Example Very Helpful, For Me Anyway.
// Description:This little thingy here just demonstrates the very primitive use of SWING!!!!!!!!!!!!!!!!!!!!!!!!!
// By: C.V. (from psc cd)
//
// Side Effects:Sticky fingers.
//**************************************

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class Swing1 extends JFrame implements DocumentListener, ActionListener {
public Swing1() {
//Set attributes of the frame
setTitle("SWING Sample One");
setSize(600, 400);
setResizable(true);
setLocation(100, 100);
//Define the container for all of the controls and the main panel(s)
Container contentPane = getContentPane();
JPanel panel1 = new JPanel(null);
//Define the components of the held within the frame and panel(s)
text1 = new JTextField("", 10);
button1 = new JButton("Set");
button2 = new JButton("Get");
text1.setBounds(20, 20, 80, 20);
panel1.add(text1);
button1.setBounds(120, 20, 80, 20);
panel1.add(button1);
button2.setBounds(220, 20, 80, 20);//Defines the coordinates of the component Format=(x, y, w, h)
panel1.add(button2);//Adds the component to the panel
//Add the ActionListeners for the components
text1.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyPressed(java.awt.event.KeyEvent evt) {
System.out.println("Key pressed!");
}
});
button1.addMouseListener(new javax.swing.event.MouseInputAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
text1.setText("Tested");
}
});
button2.addMouseListener(new javax.swing.event.MouseInputAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
JOptionPane.showMessageDialog(null, text1.getText(), "text1 has the value of:", 1);
}
});
//Define the menu and their items. Coded here in the heirarchy's visual format
menuBar = new JMenuBar();
mnuFile = new JMenu("File");
mnuNew = new JMenuItem("New");
mnuNew.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(null, mnuNew.getText(), "The item you selected is:", 1);
}
});
mnuOpen = new JMenu("Open");
mnuItem1 = new JMenuItem("Item 1");
mnuItem2 = new JMenuItem("Item 2");
mnuItem3 = new JMenuItem("Item 3");
//Add the menu items
mnuOpen.add(mnuItem1);
mnuOpen.add(mnuItem2);
mnuOpen.add(mnuItem3);
mnuExit = new JMenuItem("Exit");
mnuCheckBoxMenuItem = new JCheckBoxMenuItem("Check Box Menu Item");
sepOne = new JSeparator();
//Add the menu items
mnuFile.add(mnuNew);
mnuFile.add(mnuOpen);
mnuFile.add(mnuCheckBoxMenuItem);
mnuFile.add(sepOne);
mnuFile.add(mnuExit);
//Add the top-level menus to the menuBar
menuBar.add(mnuFile);
//Add the top-level components (i.e. Panels, MenuBar, etc...)
contentPane.add(panel1);
contentPane.add(menuBar, "North");
//Monitor for the closing of the window
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public static void main(String[] args) {
JFrame frame = new Swing1();
frame.show();
}
public void actionPerformed(ActionEvent e) {}
public void insertUpdate(DocumentEvent e) {}
public void changedUpdate(DocumentEvent e) {}
public void removeUpdate(DocumentEvent e) {}
//Global declarations for all components used
private JButton button1;
private JButton button2;
private JTextField text1;
private JMenuBar menuBar;
private JMenu mnuFile;
private JMenuItem mnuNew;
private JMenu mnuOpen;
private JMenuItem mnuExit;
private JMenuItem mnuItem1;
private JMenuItem mnuItem2;
private JMenuItem mnuItem3;
private JCheckBoxMenuItem mnuCheckBoxMenuItem;
private JSeparator sepOne;
}


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