perfectnum.java

针对越来越多的用户喜欢JAVA

public class PerfectNum
{
  public static void main (String args[])
  {
     int count=1;
     for (int i=1;i<1000;i++)
     {
          if(isPerfect(i))
          {
              System.out.print(i+String.valueOf('\t'));
              count++;
              if(count%3==0)
                System.out.println();
          }
      } 
  }
  static boolean isPerfect(int x)
  {
      int y=0;
      for(int i=1;i<x;i++)
           if(x%i==0)
               y+=i;
      if(y==x)
           return true;
      else
           return false;
  }
}