Java8 Lambda

LambdaApp.java

public static void main(String[] args) {
    Operationable operation;
    operation = (x,y)->x+y;

    int result = operation.calculate(10, 20);
}

public class LambdaApp {
    public static void main(String[] args) {
        Operationable op = new Operationable(){
         
            public int calculate(int x, int y){
             
                return x + y;
            }
        };
         int z = op.calculate(20, 10);
    }   
}
interface Operationable{
    int calculate(int x, int y);
}