public class 自冪數(shù) {

 public static void main(String[] args) {
  Scanner input = new Scanner(System.in);
  System.out.println("請輸入您所要查的自冪數(shù)位數(shù)：");
  int n = input.nextInt();// 接收數(shù)字位數(shù)
  // 定義一數(shù)字number，從10^(n-1)開始自加,到10^n結(jié)束
  switch (n) {
  case 1:
   System.out.println("獨身數(shù):");
   System.out.print("0" + "\t");
   break;
  case 2:
   System.out.println("兩位自冪數(shù):");
   System.out.println("沒有自冪數(shù)！");
   break;
  case 3:
   System.out.println("水仙花數(shù):");
   break;
  case 4:
   System.out.println("玫瑰花數(shù):");
   break;
  case 5:
   System.out.println("五角星數(shù):");
   break;
   case 7:
   System.out.println("北斗七星數(shù):");
   break;
  case 8:
   System.out.println("八仙數(shù):");
   break;
  case 9:
   System.out.println("九九重陽數(shù):");
   break;
  case 10:
   System.out.println("十全十美數(shù):");
   break;
  default:
   System.out.println("其它自冪數(shù):");
   break;
  }
  for (int number = (int) Math.pow(10, n - 1); number < Math.pow(10, n); number++) {
   // 判斷條件：數(shù)字number的位數(shù)為n
   if (String.valueOf(number).length() == n) {
    double num = 0;
    for (int i = 0; i < n; i++) {
     int temp = (int) (number / Math.pow(10, i)) % 10;
     num += Math.pow(temp, n);
    }
    if (number == num) {
     System.out.print(number + "\t");
    }
   }
  }
  input.close();
 }
}