BinaryToOctal.java

package Conversions;

import java.util.Scanner;

/**
 * Converts any Binary number to an Octal Number
 *
 * @author Zachary Jones
 */
public class BinaryToOctal {

    /**
     * Main method
     *
     * @param args Command line arguments
     */
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        int b = sc.nextInt();
        System.out.println("Octal equivalent: " + convertBinaryToOctal(b));
        sc.close();

    }

    /**
     * This method converts a binary number to
     * an octal number.
     *
     * @param b The binary number
     * @return The octal number
     */
    public static int convertBinaryToOctal(int b) {
        int o = 0, r = 0, j = 1;
        while (b != 0) {
            r = b % 10;
            o = o + r * j;
            j = j * 2;
            b = b / 10;
        }
        return o;
    }

}