focusevent1.java

来自「该原代码为＜Java编程基础、应用与实例＞的附盘代码」· Java 代码 · 共 27 行

import java.awt.*;
import java.awt.event.*;
public class FocusEvent1 extends Frame implements FocusListener{
  List fInfo =new List(10);
  TextField tf=new TextField("");
  Button button=new Button("犬牢");
  public FocusEvent1(String title){
  	super(title);
  	add(fInfo,"North");
  	add(tf,"Center");
  	add(button,"South");
  	tf.addFocusListener(this);
  }
  public void focusGained(FocusEvent e){
  	if(e.isTemporary()) fInfo.add("老矫利栏肺 掘促");
  	else fInfo.add("瘤加利栏肺 掘促");
  }
  public void focusLost(FocusEvent e){
  	if(e.isTemporary()) fInfo.add("老矫利栏肺 酪促");
  	else fInfo.add("瘤加利栏肺 酪促");
  }
  public static void main(String[] args){
    FocusEvent1 f=new FocusEvent1("器目胶 捞亥飘 贸府");
    f.pack();
    f.setVisible(true);
  }
}