【Java每日一题】20161201

package Dec2016;  
  
public class Ques1201 {  
  
    public static void main(String[] args) {  
        new Ques1201().sum(1, 2);  
    }  
  
    public void sum(int num1, int num2){  
        int temp = num1 + num2;  
        System.out.println("没使用变长参数计算："+temp);  
    }  
  
    public void sum(int num1, int... num2){  
        int temp = num1;  
        for(int n : num2){  
            temp = temp + n;  
        }  
        System.out.println("使用变长参数计算："+temp);  
    }  
}