e5_3.java

java 初学者学习实例

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class E5_3 extends Applet implements ActionListener
{
    TextField text1,text2;
    public void init()
	{  
	   text1 = new TextField(10);
	   text2 = new TextField(10);
	   add(text1);add(text2); 
	   text1.addActionListener(this);
	}
	 public void actionPerformed(ActionEvent e)
	 {
	    if((e.getSource()==text1)&&(text1.getText().equals("boy")))
		{text2.setText("男孩");}
		else {text2.setText("没有这个单词");}
	}
}