文本框的簡單處理程序

 
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class haha extends Applet implements ActionListener
{
	Label lb;
	TextField in,out;
	public void init()
	{
		lb=new Label("請輸入您的名字");
		in=new TextField(6);
		out=new TextField(20);
		add(lb);
		add(in);
		add(out);
		in.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e)
	{
		out.setText(in.getText()+"歡迎光臨！");
	}
}