JavaAlgorithms/Conversions/DecimalToOctal.java

package Conversions;

import java.util.Scanner;

/** This class converts Decimal numbers to Octal Numbers */
public class DecimalToOctal {
  /**
   * Main Method
   *
   * @param args Command line Arguments
   */

  // enter in a decimal value to get Octal output
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n, k, d, s = 0, c = 0;
    System.out.print("Decimal number: ");
    n = sc.nextInt();
    k = n;
    while (k != 0) {
      d = k % 8;
      s += d * (int) Math.pow(10, c++);
      k /= 8;
    }

    System.out.println("Octal equivalent:" + s);
    sc.close();
  }
}