Lambda表达式简化过程

package Lambda;

public class Demo1 {

    //静态内部类
    static class Like2 extends Like{
        public void lambda(){
            System.out.println("I like lambda2");
        }
    }

    public static void main(String[] args) {
        //1、正常调用
        ILike like = new Like();
        like.lambda();

        ILike like2 = new Like2();
        like2.lambda();

        //2、局部内部类
        class Like3 extends Like{
            public void lambda(){
                System.out.println("I like lambda3");
            }
        }

        ILike like3 = new Like3();
        like3.lambda();

        //3、匿名内部类
        ILike like4 = new ILike(){
            @Override
            public void lambda(){
                System.out.println("I like lambda4");
            }
        };
        like4.lambda();


        //4、lambda简化，单方法接口的匿名实现类
        ILike like5 = ()->{
            System.out.println("I like lambda5");
        };
        like5.lambda();
    }



}


interface ILike{
    void lambda();
}


class Like implements ILike{

    @Override
    public void lambda(){
        System.out.println("I like lambda");
    }
}