Java.lang.Integer.toBinaryString() Method

Description

The java.lang.Integer.toBinaryString() method returns a string representation of the integer argument as an unsigned integer in base 2.

Declaration

Following is the declaration for java.lang.Integer.toBinaryString() method

public static String toBinaryString(int i)

Parameters

• i -- This is an integer to be converted to a string.

Return Value

This method returns the string representation of the unsigned integer value represented by the argument in binary (base 2).

Exception

• NA

Example

The following example shows the usage of java.lang.Integer.toBinaryString() method.

package com.tutorialspoint;

import java.lang.*;

public class IntegerDemo {

   public static void main(String[] args) {

     int i = 170;
     System.out.println("Number = " + i);
    
     /* returns the string representation of the unsigned integer value 
     represented by the argument in binary (base 2) */
     System.out.println("Binary is " + Integer.toBinaryString(i));

     // returns the number of one-bits 
     System.out.println("Number of one bits = " + Integer.bitCount(i)); 
   } 
} 

Let us compile and run the above program, this will produce the following result:

Number = 170
Binary is 10101010
Number of one bits = 4