hdu 1002 A + B Problem II(Java)

Problem Description

I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.

Input

The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.

Output

For each test case, you should output two lines. The first line is “Case #:”, # means the number of the test case. The second line is the an equation “A + B = Sum”, Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.

代码

import java.math.BigInteger;import java.util.Scanner;public class Main{    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        int n = sc.nextInt();        int t = 0;        boolean isFrist = true;        while(t++<n){            BigInteger a = sc.nextBigInteger();            BigInteger b = sc.nextBigInteger();            BigInteger c = a.add(b);            if(!isFrist){                System.out.println();            }else{                isFrist=!isFrist;            }            System.out.println("Case "+t+":");            System.out.println(a.toString()+" + "+b.toString()+" = "+c.toString());        }    }}