Lambda表达式的推导

package Lambda;
/*
推导lambda表达式
 */
public class Demo01 {

    //3.静态内部类
    static class Like2 implements ILike{
        @Override
        public void lambda() {
            System.out.println("I like lambda2");
        }
    }

    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 lambda3");
            }
        }
        like = new Like3();
        like.lambda();

        //5.匿名内部类,没有类的名称，必须借助接口或者父类
        like = new ILike(){
            @Override
            public void lambda() {
                System.out.println("I like lambda4");
            }
        };
        like.lambda();

        //6.用lambda简化
        like = ()->{
            System.out.println("I like lambda5");
        };
        
        like.lambda();

    }


}
//1.定义一个函数式接口
interface ILike{
    void lambda();
}
//2.实现类
class Like implements ILike{
    @Override
    public void lambda() {
        System.out.println("I like lambda");
    }
}