keydemo1.java

KeyDemo1 key event cod ..........

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class KeyDemo1 implements KeyListener
{
	private String line1 = "", line2 = "";
	private String line3 = "";
	private JTextArea textArea;
	private Frame f;
	public KeyDemo1()
	{
		f = new Frame("Demonstrate KeyStroke");
		f.setLayout(new BorderLayout());

		textArea = new JTextArea(50, 35);
		textArea.setText("Press any key on the keyboard...");
		textArea.setEnabled(false);
		//textArea.setBackground(Color.black);
		Font font = new Font("Serif", Font.BOLD, 20);
		textArea.setFont(font);
		f.add(textArea, BorderLayout.CENTER);
		// allow frame to process Key events
		f.addKeyListener(this);
		textArea.setSize(350, 300);
		f.show();
	}

	public void keyPressed(KeyEvent e)
	{
		line1 = "Key pressed: " + e.getKeyText(e.getKeyCode());
		setLines2and3(e);
	}

	public void keyReleased(KeyEvent e)
	{
		line1 = "Key released: " + e.getKeyText(e.getKeyCode());
		setLines2and3(e);
	}

	public void keyTyped(KeyEvent e)
	{
		line1 = "Key typed: " + e.getKeyChar();
		setLines2and3(e);
	}
	private void setLines2and3(KeyEvent e)
	{
		line2 = "This key is " + (e.isActionKey() ? "" : "not ") + "an action key";
		String temp = e.getKeyModifiersText(e.getModifiers());
		line3 = "Modifier keys pressed: " + (temp.equals("") ? "none" : temp);
		textArea.setText(line1 + "\n" + line2 + "\n" + line3 + "\n");
	}
	public static void main(String args[])
	{
		KeyDemo1 app = new KeyDemo1();
	}
}