public class hh {public static void main(String[]args){ ilike like=(a,b)->{ System.out.println("ad"+(a+b)); return a+b; }; like.lambda(100, 200); //一行代码省略格式 ilike like2=(a,b)->a+b;//return 也省略掉 like2.lambda(200, 200); ilike like3=(a,b)->100;//相当于返回值就是100 like3.lambda(300, 200);}}interface ilike{int lambda(int a,int b);}class like implements ilike{public int lambda(int a,int b){ System.out.println("ad"+(a+b)); return a+b;}}