User talk:Vikarsh

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«no subject»009:53, 12 January 2011
«no subject»009:49, 12 January 2011

«no subject»

simple swing code for menu..........................



copy and paste and enjoyyyy programming


import java.awt.*;
import java.awt.event.*;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.ButtonGroup;
import javax.swing.JMenuBar;
import javax.swing.KeyStroke;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JFrame;

//Used Action Listner for JMenuItem & JRadioButtonMenuItem
//Used Item Listner for JCheckBoxMenuItem

public class JMenuDemo implements ActionListener, ItemListener {

JTextArea jtAreaOutput;
JScrollPane jspPane;
public JMenuBar createJMenuBar() {
JMenuBar mainMenuBar;
JMenu menu1, menu2, submenu;
JMenuItem plainTextMenuItem, textIconMenuItem, iconMenuItem, subMenuItem;
JRadioButtonMenuItem rbMenuItem;
JCheckBoxMenuItem cbMenuItem;
ImageIcon icon = createImageIcon("jmenu.jpg");
mainMenuBar = new JMenuBar();
menu1 = new JMenu("Menu 1");
menu1.setMnemonic(KeyEvent.VK_M);
mainMenuBar.add(menu1);
// Creating the MenuItems
plainTextMenuItem = new JMenuItem("Menu item with Plain Text",
KeyEvent.VK_T);
// can be done either way for assigning shortcuts
// menuItem.setMnemonic(KeyEvent.VK_T);
// Accelerators, offer keyboard shortcuts to bypass navigating the menu
// hierarchy.
plainTextMenuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
plainTextMenuItem.addActionListener(this);
menu1.add(plainTextMenuItem);
textIconMenuItem = new JMenuItem("Menu Item with Text & Image",
icon);
textIconMenuItem.setMnemonic(KeyEvent.VK_B);
textIconMenuItem.addActionListener(this);
menu1.add(textIconMenuItem);
// Menu Item with just an Image
iconMenuItem = new JMenuItem(icon);
iconMenuItem.setMnemonic(KeyEvent.VK_D);
iconMenuItem.addActionListener(this);
menu1.add(iconMenuItem);
menu1.addSeparator();
// Radio Button Menu items follow a seperator
ButtonGroup itemGroup = new ButtonGroup();
rbMenuItem = new JRadioButtonMenuItem(
"Menu Item with Radio Button");
rbMenuItem.setSelected(true);
rbMenuItem.setMnemonic(KeyEvent.VK_R);
itemGroup.add(rbMenuItem);
rbMenuItem.addActionListener(this);
menu1.add(rbMenuItem);
rbMenuItem = new JRadioButtonMenuItem(
"Menu Item 2 with Radio Button");
itemGroup.add(rbMenuItem);
rbMenuItem.addActionListener(this);
menu1.add(rbMenuItem);
menu1.addSeparator();
// Radio Button Menu items follow a seperator
cbMenuItem = new JCheckBoxMenuItem("Menu Item with check box");
cbMenuItem.setMnemonic(KeyEvent.VK_C);
cbMenuItem.addItemListener(this);
menu1.add(cbMenuItem);
cbMenuItem = new JCheckBoxMenuItem("Menu Item 2 with check box");
cbMenuItem.addItemListener(this);
menu1.add(cbMenuItem);
menu1.addSeparator();
// Sub Menu follows a seperator
submenu = new JMenu("Sub Menu");
submenu.setMnemonic(KeyEvent.VK_S);
subMenuItem = new JMenuItem("Sub MenuItem 1");
subMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_2,
ActionEvent.CTRL_MASK));
subMenuItem.addActionListener(this);
submenu.add(subMenuItem);
subMenuItem = new JMenuItem("Sub MenuItem 2");
submenu.add(subMenuItem);
subMenuItem.addActionListener(this);
menu1.add(submenu);
// Build second menu in the menu bar.
menu2 = new JMenu("Menu 2");
menu2.setMnemonic(KeyEvent.VK_N);
mainMenuBar.add(menu2);
return mainMenuBar;
}
public Container createContentPane() {
// Create the content-pane-to-be.
JPanel jplContentPane = new JPanel(new BorderLayout());
jplContentPane.setLayout(new BorderLayout());// Can do it either way
// to set layout
jplContentPane.setOpaque(true);
// Create a scrolled text area.
jtAreaOutput = new JTextArea(5, 30);
jtAreaOutput.setEditable(false);
jspPane = new JScrollPane(jtAreaOutput);
// Add the text area to the content pane.
jplContentPane.add(jspPane, BorderLayout.CENTER);
return jplContentPane;
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = JMenuDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find image file: " + path);
return null;
}
}
private static void createGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
// Create and set up the window.
JFrame frame = new JFrame("JMenu Usage Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JMenuDemo app = new JMenuDemo();
frame.setJMenuBar(app.createJMenuBar());
frame.setContentPane(app.createContentPane());
frame.setSize(500, 300);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
JMenuItem source = (JMenuItem) (e.getSource());
String s = "Menu Item source: " + source.getText()
+ " (an instance of " + getClassName(source) + ")";
jtAreaOutput.append(s + "\n");
jtAreaOutput.setCaretPosition(jtAreaOutput.getDocument()
.getLength());
}
public void itemStateChanged(ItemEvent e) {
JMenuItem source = (JMenuItem) (e.getSource());
String s = "Menu Item source: "
+ source.getText()
+ " (an instance of "
+ getClassName(source)
+ ")"
+ "\n"
+ " State of check Box: "
+ ((e.getStateChange() == ItemEvent.SELECTED) ? "selected"
 : "unselected");
jtAreaOutput.append(s + "\n");
jtAreaOutput.setCaretPosition(jtAreaOutput.getDocument()
.getLength());
}
// Returns the class name, no package info
protected String getClassName(Object o) {
String classString = o.getClass().getName();
int dotIndex = classString.lastIndexOf(".");
return classString.substring(dotIndex + 1); // Returns only Class name
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {
createGUI();
}
});
}
}

Vikarsh (talk)09:53, 12 January 2011

«no subject»

import javax.swing.JFrame;
import javax.swing.JLabel;

//import statements
//Check if window closes automatically. Otherwise add suitable code
public class HelloWorldFrame extends JFrame {

public static void main(String args[]) {
new HelloWorldFrame();
}
HelloWorldFrame() {
JLabel jlbHelloWorld = new JLabel("Hello World");
add(jlbHelloWorld);
this.setSize(100, 100);
// pack();
setVisible(true);
}
}

Vikarsh (talk)09:49, 12 January 2011