ch11ex_1.java

java练习程序

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class Ch11Ex_1 extends Applet implements ActionListener
{
	Button 确定=new Button("Enter");
	Label 标签=new Label("通讯地址和电话:");
	public void init()
	{
		add(确定);add(标签);
		确定.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e)
	{
		if(e.getSource()==确定)
		{
			标签.setText("我点击了"+确定.getLabel());
			标签.setBackground(Color.red);
			标签.setForeground(Color.green);
		}
	}
}