JAVA大数学习

1：实现两个小数相加去掉后边多余的0

package main;
import  java.math.BigDecimal;
import  java.util.*;
public class Main 
{

	public static void main(String[] args)
	{
		 Scanner in = new Scanner(System.in);
	      while(in.hasNextBigDecimal()) 
	      {
	    	  BigDecimal a = in.nextBigDecimal();
	    	  BigDecimal b = in.nextBigDecimal();
	    	    System.out.println( a.add(b).stripTrailingZeros().toString());
 
	      }
	}
}