java 大整数运算Integer Inquiry HDU

import java.io.*;import java.util.*;import java.math.BigInteger;import java.lang.*;public class Student {public static void main(String[] args) {// TODO Auto-generated method stubScanner cin = new Scanner(System.in);int t;t = cin.nextInt();while(t-->0){BigInteger a,b,c;//a = cin.nextBigInteger();b = BigInteger.ZERO;while(cin.hasNextBigInteger()){c = BigInteger.ZERO;c = cin.nextBigInteger();if(!c.equals(BigInteger.valueOf(0))){b = b.add(c);}else{System.out.println(b);if(t != 0)System.out.println("");break;}}System.gc();}}}