哈哈。。。几年一下自己手写的第一个Java大整数程序:
import java.util.*;
import java.io.*;
import java.math.*;
public class Main {
public static void main(String agrs[]){
Scanner cin = new Scanner(System.in);
while (cin.hasNextInt()){
int n = cin.nextInt();
for (int i = 1; i <= n; ++i){
BigInteger a = cin.nextBigInteger();
BigInteger b = cin.nextBigInteger();
BigInteger c = a.add(b);
System.out.println("Case " + i + ":");
System.out.println(a + " + " + b + " = " + c);
if (i != n) System.out.println();
}
}
}
}