2018-02-07

package com.richard.lambdaexpressions;

public class Calculator {

interface IntegerMath{
    
    int operation(int a,int b);
}

public int operateBinary(int a,int b,IntegerMath op){
    
    return op.operation(a, b);
}

public static void main(String[] args){
    
    Calculator myApp=new Calculator();
    IntegerMath addtion=(a,b)->a+b;
    IntegerMath subtraction=(a,b)->a-b;
    System.out.println("40+2= "+myApp.operateBinary(40,2, addtion));
    System.out.println("50-20= "+myApp.operateBinary(50, 20, subtraction));
    
    System.out.println("*********************");
    
    int result=myApp.operateBinary(120, 110, new IntegerMath(){
        
        @Override
        public int operation(int a, int b) {
            // TODO Auto-generated method stub
            return (a+b);
        }
    });
    
    System.out.println(result);
    
    System.out.println("*********************");
    
    int result1=myApp.operateBinary(100, 200, new IntegerMath(){
        
        public int operation(int a,int b){
            
            return (a-b);
        }
    });
    
    System.out.println(result1);
}

}