Lambda表达式练习（抽象带参带返回值）

package com.czie.iot1913.Java8.Lambda.LambdaTest01.Practice02;

/**
 * FileName: AddableDemo
 * Author:   lps
 * Date:     2022/4/3 16:25
 * Sign:刘品水 Q：1944900433
 */
public class AddableDemo {
    public static void main(String[] args) {
//        useAddable(new Addable() {
//            @Override
//            public int add(int x, int y) {
//                System.out.println(x+y);
//                return x+y;
//            }
//        });
//
//        //lambda表达式
//        useAddable(((x, y) -> {
//            System.out.println(x+y);
//            return x+y;
//        }));
        useAddable(new Addable() {
            @Override
            public int add(int x, int y) {
                return x+y;
            }
        });
        
        //lambda
        useAddable(((x, y) -> x+y));

    }
    public static void useAddable(Addable a){
        int sum=a.add(10,20);
        System.out.println(sum);
    }
}

package com.czie.iot1913.Java8.Lambda.LambdaTest01.Practice02;

/**
 * FileName: Addable
 * Author:   lps
 * Date:     2022/4/3 16:25
 * Sign:刘品水 Q：1944900433
 */
public interface Addable {
 int add(int x,int y);
}