HDOJ 1090 A+B for Input-Output Practice (II)

Problem Description
Your task is to Calculate a + b.

Input
Input contains an integer N in the first line, and then N lines follow. Each line consists of a pair of integers a and b, separated by a space, one pair of integers per line.

Output
For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

Sample Input
2
1 5
10 20

Sample Output
6
30

这里有一个输入的限制N，用while或者for循环都可以。

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int n=sc.nextInt();
    while(n-->0){
        int a=sc.nextInt();
        int b=sc.nextInt();
        System.out.println(a+b);
    }
}

}

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        for(int i=0;i<n;i++){
            int a=sc.nextInt();
            int b=sc.nextInt();
            System.out.println(a+b);
        }
    }

}