Poj Solution 1555

http://poj.org/problem?id=1555

//* @author: 82638882@163.com
import java.util.Scanner;
public class Main
{
 public static void main(String[] args)
 {
  Scanner in=new Scanner(System.in);
   while(in.hasNext())
   {
    StringBuffer bb=new StringBuffer();
    int[] a=new int[9];
    boolean b=true;
    for(int i=0;i< 9;i++)
        a[i]=in.nextInt();
    for(int i=0;i< 8;i++)
    {
     if(a[i]!=0)
     {
       if(b){
        if(a[i]< 0) bb.append("-");
        b=false;
      }
      else if(a[i]>0) bb.append(" + ");
      else if(a[i]< 0) bb.append(" - ");
      bb.append((Math.abs(a[i])==1?"":Math.abs(a[i]))+"x"+((8-i)==1?"":"^"+(8-i)));
     }
    }
    if(b)bb.append(a[8]);
    else if(a[8]>0)bb.append(" + "+Math.abs(a[8]));
    else if(a[8]< 0)bb.append(" - "+Math.abs(a[8]));
    System.out.println(bb);
      }
  }
}