/*
* 본 코드는 생활코딩 Java 수업을 위해서 만들어진 코드입니다. 
* http://o...content-available-to-author-only...s.org/module/516
* 누구든지 이 코드를 이용해서 원하는데로 사용할 수 있습니다. (public domain)
* 본 코드는 아래 수업에서 활용되고 있습니다.
* 실제 수업의 내용과 ideone.com의 코드는 다를 수 있습니다. 
* ideone.com 플랫폼의 특성 때문입니다.
*/
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class Calculator{
    int left, right;
 
    public void setOprands(int left, int right){
        this.left = left;
        this.right = right;
    }
 
    public void sum(){
        System.out.println(this.left+this.right);
    }
 
    public void avg(){
        System.out.println((this.left+this.right)/2);
    }
}
 
class CalculatorDemo4 {
 
    public static void main(String[] args) {
 
        Calculator c1 = new Calculator();
        c1.setOprands(10, 20);
        c1.sum();       
        c1.avg();       
 
        Calculator c2 = new Calculator();
        c2.setOprands(20, 40);
        c2.sum();       
        c2.avg();
    }
 
}

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