java 比较两数大小

import java.math.BigDecimal;  import java.util.*;  import java.io.*;  public class Main  {  public static void main(String args[])  {  Scanner cin=new Scanner(System.in);while(cin.hasNext()){String s=cin.next();String ss=cin.next();BigDecimal a=new BigDecimal(s);BigDecimal b=new BigDecimal(ss);int t=a.compareTo(b);if(t==0)System.out.println("相等");else if(t<0)System.out.println("前者小");else if(t>0)System.out.println("前者大");}}  }