一文讀懂java中的匿名內(nèi)部類

package com.mianshi.test;
/**
 * 類名稱：AnonymousInnerClassTest 
 * 描述： 匿名內(nèi)部類測試
 * 創(chuàng)建人：王秋林 
 * 創(chuàng)建時間：2017-2-12
 */
public class AnonymousInnerClassTest {
  public static void main(String args[]){   
    AnonymousInnerClassTest test = new AnonymousInnerClassTest();   
    test.show();   
  }   
  //在這個方法中構(gòu)造了一個匿名內(nèi)部類   
  private void show(){   
    Out anonyInter = new Out(){//獲取匿名內(nèi)部類實例   
      void show(){//重寫父類的方法   
        System.out.println("this is Anonymous InnerClass showing.");
      }   
    };   
    anonyInter.show();//調(diào)用其方法   
  } 
}
//這是一個已經(jīng)存在的類，匿名內(nèi)部類通過重寫其方法，將會獲得另外的實現(xiàn)   
class Out{   
  void show(){   
    System.out.println("this is Out showing.");   
  }   
}

abstract class Person {
  public abstract void eat();
}
public class Demo {
  public static void main(String[] args) {
    Person p = new Person() {
      public void eat() {
        System.out.println("eat something");
      }
    };
    p.eat();
  }
}

interface Person {
  public void eat();
}
public class Demo {
  public static void main(String[] args) {
    Person p = new Person() {
      public void eat() {
        System.out.println("eat something");
      }
    };
    p.eat();
  }
}

public class Demo {
  public static void main(String[] args) {
    Thread t = new Thread() {
      public void run() {
        for (int i = 1; i <= 5; i++) {
          System.out.print(i + " ");
        }
      }
    };
    t.start();
  }
}

public class Demo {
  public static void main(String[] args) {
    Runnable r = new Runnable() {
      public void run() {
        for (int i = 1; i <= 5; i++) {
          System.out.print(i + " ");
        }
      }
    };
    Thread t = new Thread(r);
    t.start();
  }
}