回文数

public class CircleNumber {
  public static void main(String[] args) {
    for(int i=10;i<10000;i++){
      if(isCircleNumber(i)){
        System.out.println(i+"是回文数");
      }
    }   
    isCircleNumber(12345);

  }
  
  private static boolean isCircleNumber(int number){
    int oldValue=number;
    int sum=0;
    
    while(number>0){      
      sum=sum*10+number%10;
      number/=10;
    }
    
    return sum==oldValue;
  }
}