NYoj 103 大数相加

             一道简单题，以前用c++写过，今天看了点Java，就用Java写了一下，，，，，，题目：

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

A,B must be positive.

输入

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.

输出

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.

样例输入

21 2112233445566778899 998877665544332211

样例输出

Case 1:1 + 2 = 3Case 2:112233445566778899 + 998877665544332211 = 1111111111111111110

ac代码：

 import java.util.*;import java.math.BigInteger;public class Main {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubBigInteger d,dd;    int kk,i;Scanner cin=new Scanner(System.in);kk=cin.nextInt();    for(i=1;i<=kk;++i){d=cin.nextBigInteger();dd=cin.nextBigInteger();System.out.println("Case "+i+":");System.out.println(d+" + "+dd+" = "+d.add(dd));}}}