keyboardaction.java

来自「一些常用的java程序,包括swing.net.io,matrix等」· Java 代码 · 共 55 行

package actionAndEvent;

import javax.swing.*;
import java.awt.*;
//import java.awt.Event.*;
import java.awt.event.*;
public class KeyboardAction extends javax.swing.JFrame
{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public KeyboardAction()
	{
		super("keyboard action");
		java.awt.Container c = getContentPane();
		
		JTextField tf = new JTextField(" ",15);
		/*
		tf.addFocusListener(new FocusListener()
		{
			public void focusGained(FocusEvent e)
			{
				System.out.println("get Focuse");
			}
			
			public void focusLost(FocusEvent e)
			{
				System.out.println("lost Focuse");
			}
		}
		);//tf.addFoucusListener
		*/
		tf.addKeyListener(new KeyAdapter()
		{
			public void keyTyped(KeyEvent e)
			{
				System.out.println("keyboard event:"+e.getKeyChar());
			}
		}
		);
		
		c.add(tf,BorderLayout.CENTER);
	}
	
	public static void main(String [] args)
	{
		KeyboardAction app = new KeyboardAction();
		app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		app.setSize(350, 80);
		app.setVisible(true);
	}
}