Lamda表达式

没有传参的lamda表达式

package com.pln.lamda;
public class TestLamda1 {
//   3. 静态内部类
    static class Like2 implements ILike{
        @Override
        public void Lambda() {
            System.out.println("i Like lamda2");
        }
    }
    public static void main(String[] args) {
        ILike like = new Like() ;
        like.Lambda();
        like = new Like2() ;
        like.Lambda();
        //   4. 局部内部类
         class Like3 implements ILike{
            @Override
            public void Lambda() {
                System.out.println("i Like lamda3");
            }
        }
        like = new Like3() ;
        like.Lambda();
        //   5. 匿名内部类，没有类名，必须借助接口或者父类
        like = new ILike() {
            @Override
            public void Lambda() {
                System.out.println("i Like lamda4");
            }
        };
        like.Lambda();
         // 6.用lamda简化
        like = () ->{
            System.out.println("i Like lamda5");
        };
        like.Lambda();
    }
}
//1.定义一个接口
interface ILike{
    void Lambda();
}
//2.实现类
class Like implements ILike{
    @Override
    public void Lambda() {
        System.out.println("i Like lamda1");
    }
}

结果：

传参的lamda表达式