keydemo.java

javakeydemo的代码 输入的测试

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class  KeyDemo extends Applet 
{
	String str;
	public void init()
	{
		str="abcd";
		addKeyListener(new KeyAdapter(){
			public void keyTyped(KeyEvent ke)
		{
		str+=ke.getKeyChar();
		repaint();
		}});
	}
	public void paint(Graphics g)
	{
		g.drawString(str,20,20);
	}
	
}