innerclass3.java

来自「金旭亮的java教案」· Java 代码 · 共 21 行

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

public class f extends Applet {
 Button apple=new Button("Press me");
 public void init() {
  //现场定义一个内部类
  class MyinnerBHClass implements java.awt.event.ActionListener {
      int i=1;
      public void actionPerformed (ActionEvent e) {
         ...
      }
 }
 
 add(apple);
 //将内部类的对象传给方法
 apple.addActionListener(new MyinnerBHClass());
 
 }
}