C#Exams 5. Bit Roller (on Java Code)

import java.util.Scanner;

public class _5_BitRoller {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        int number = scan.nextInt();
        int frozenBit = scan.nextInt();
        int movingTimes = scan.nextInt();

        movingTimes %= 18;
        for (int i = 0; i < movingTimes; i++) {
            number = rollBitsNumberOneTimeToTheRight(number, frozenBit);
        }

        System.out.println(number);
    }

    private static int rollBitsNumberOneTimeToTheRight(int number, int frozenBit) {
        // TODO Auto-generated method stub
        int resultNum = 0;
        for (int bit = 0; bit < 19; bit++) {
            int bitValue = (number >>> bit) & 1;
            if (bit == frozenBit) {
                resultNum |= bitValue << bit;
            } else {
                int nextPosition = moveAtRightPosition(frozenBit, bit);
                resultNum |= bitValue << nextPosition;
            }
        }

        return resultNum;
    }

    private static int moveAtRightPosition(int frozenBit, int bit) {
        // TODO Auto-generated method stub
        int nextPosition = bit - 1;
        if (nextPosition < 0) {
            nextPosition = 18;
        }

        if (nextPosition == frozenBit) {
            nextPosition -= 1;
            if (nextPosition < 0) {
                nextPosition = 18;
            }
        }
        return nextPosition;
    }

}