HDu 1002 java大数加算

package Main;

//import java.io.InputStream;

import java.math.BigDecimal;

import java.util.Scanner;

public class Main {

    public static void main(String[] args)

    {

        int _case;

        BigDecimal a,b;

        a=new BigDecimal("0");

        b=new BigDecimal("0");

        Scanner reader=new Scanner(System.in);

        _case=reader.nextInt();

        int js=0;

        while(_case-->0)

        {

            js++;

            a=reader.nextBigDecimal();

            b=reader.nextBigDecimal();

            System.out.println("Case "+js+":");//.stripTrailingZeros().toPlainString()         

            System.out.println(a+" + "+b+" = "+a.add(b));

            if(_case>0)System.out.println();

        }

    }

}