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  1. import java.math.BigInteger;
  2. import java.util.Scanner;
  3.  
  4.  
  5.  
  6. public class Hello {
  7.     public static BigInteger reverse(BigInteger num){
  8.         return new BigInteger(new StringBuilder(num+"").reverse().toString());
  9.     }
  10.     public static void main(String[] args) {
  11.         System.out.println("Дай мне число, больше ста!");
  12.         Scanner in = new Scanner(System.in);
  13.         BigInteger bi = in.nextBigInteger();
  14.         byte cont = 0;
  15.         do {
  16.             BigInteger rev = reverse (bi);
  17.             BigInteger sum  = bi.add(rev);
  18.             int x = sum.toString().length();
  19.             if (x % 2 == 0){
  20.                 int half = x / 2;
  21.                 double result = Math.pow(10,half);
  22.                 int i = (int) double;
  23.                 //bi = sum % half;
  24.                 bi = sum.divide(i);
  25.                 System.out.println(result);
  26.             } else {
  27.  
  28.             }
  29.             cont ++;
  30.         } while (cont <1);
  31.  
  32.  
  33.     }
  34. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:22: error: '.class' expected
                int i = (int) double;
                                    ^
1 error
stdout
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Standard output is empty
https://ideone.com/05ySYV
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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