convert decimal into binary,Convert Decimal to Binary Java,Java Convert Decimal to Binary

Convert Decimal into Binary

In this section, you will learn to convert decimal number into binary. The java.lang package provides the functionality to convert a decimal number into a binary number.

Description of program:

This program takes a decimal number from console and it converts it into binary format using the toBinaryString() method. Input number is taken as string so convert it into an integer data using the Integer.parseInt() method. To convert the Decimal number into binary number use toBinaryString() method.

toBinaryString():
This method takes an integer type value and returns its string representation of integer values which represents the data in binary. The base of binary number is 2.

Here is the code of this program:


import java.lang.*;

import java.io.*;

public class DecimalToBinary{

  public static void main(String args[]) throws IOException{

  BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));

  System.out.println("Enter the decimal value:");

  String hex = bf.readLine();

  int i = Integer.parseInt(hex);  

  String by = Integer.toBinaryString(i);

  System.out.println("Binary: " + by);

  }

}

Output of this program:

C:\corejava>java DecimalToBinary
Enter the decimal value:
123
Binary: 1111011
C:\corejava>_

Current Comments

5 comments so far (post your own) View All Comments Latest 10 Comments:

I need your help for my assignment.
I want to convert decimal number to binary number by using C++ program. The result should be easy that I can understand.
the output should be like that:
Enter Decimal Number: 7
The Binary Eguivalent: 111

Posted by Emy on Saturday, 12.13.08 @ 02:53am | #82705

View This Comment Separately

hey, how can you please do this again without the "toBinaryString" and not importing it to java lang..

Posted by jhet on Saturday, 09.27.08 @ 07:28am | #80733

View This Comment Separately

hai
By useing this how to elemenate(remove)
duplicate values in array

1------------1 Row
1 1--------------2Row
1 2 1-------------3Row
1 2 2 3------------4Row
1 2 3 3 2-----------5Row
see above in this remove duplicates and give me
out in the following way

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

Posted by durgaprasad on Friday, 09.12.08 @ 14:34pm | #78870

View This Comment Separately

hai

by useing this methode implement the programm
public void devisibleByThree(int i,int j)
{
..............
..............
............
}
by useing this implement programm in java