Sayıyı Ters Çevir

import java.util.*;
public class sayiyiterscevir {
    public static Scanner con = new Scanner(System.in);
    public static void main(String args[]) {
        int num = con.nextInt();
        System.out.println(PrimeSpelledBackward(num));
    }

    public static int PrimeSpelledBackward(int primenumber) {
        int newNum = 0;
        int bas = ("" + primenumber).length();
        while( primenumber != 0 ) {
            int a = primenumber%10;
            primenumber /= 10;
            bas -= 1;
            newNum += a*Math.pow(10, bas);
        }
        return newNum;
    }
}