Java lang.Long.toBinaryString() method with Examples

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

Example

Following is an example to implement the toBinaryString() method −

import java.lang.*; public class Demo {    public static void main(String[] args) {       long l = 190;       System.out.println("Number = " + l);       /* returns the string representation of the unsigned long value       represented by the argument in binary (base 2) */       System.out.println("Binary is " + Long.toBinaryString(l));       // returns the number of one-bits       System.out.println("Number of one bits = "    } }

Output

Number = 190 Binary is 10111110 Number of one bits = 6

Example

Let us see another example wherein we are considering negative number −

import java.lang.*; public class Demo {    public static void main(String[] args) {       long l = -25;       System.out.println("Number = " + l);       System.out.println("Binary is " + Long.toBinaryString(l));       System.out.println("Number of one bits = " + Long.bitCount(l));    } }

Output

Number = -25 Binary is 1111111111111111111111111111111111111111111111111111111111100111 Number of one bits = 62