Share on Google+Share on Google+

Convert Decimal to Octal

In this section, you will learn to convert decimal number into octal.

Convert Decimal to Octal


In this section, you will learn to convert decimal number into octal. 

The decimal format has 10 digits (that are 0,1,2,3,4,5,6,7,8,9) with base  10. The octal number has 8 digits (as: 0,1,2,3,4,5,6,7) with base 8.

Description of code:

This program takes a decimal number at console and converts it into a  octal number  using the toString() method. The given number is taken in string format so, it must be converted into an integer type data . The toString() method converts decimal number  into the octal number.

Integer.toString(value, 8):
This method returns a string object to represent a  specified integer. It converts the decimal number into octal. This method takes two parameters: value and 8.  And it converts the signed decimal representation into the octal format. It returns back the number as a  string.

Here is the code of this program:

import java.lang.*;

public class DecimalToOctal {
  public static void main(String[] argsthrows IOException{
  BufferedReader buff = new BufferedReader(new InputStreamReader(;
  System.out.println("Enter the decimal number:");
  String deci = buff.readLine();
  int value = Integer.parseInt(deci);
  String str = Integer.toString(value,8);
  System.out.println("octal:=" + str);

Download this program.

Output of this program:

 C:\codejava>java DecimalToOctal
Enter the decimal number:


Posted on: May 31, 2007 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Share this Tutorial Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.

Discuss: Convert Decimal to Octal   View All Comments

Post your Comment

Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
August 14, 2011

a good teacher is who always teach
August 14, 2011

i like your program