Q:

Java program to check a given number is the power of 2 using bitwise operator

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mahmoud2506
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2022-05-06
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Java program to check a given number is the power of 2 using bitwise operator

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mahmoud2506
2022-05-06
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Program/Source Code:

The source code to check a given number is the power of 2 using the bitwise operator is given below. The given program is compiled and executed successfully.

// Java program to check a given number is the 
// power of 2 using bitwise operator

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner SC = new Scanner(System.in);

    int num = 0;

    System.out.printf("Enter Number: ");
    num = SC.nextInt();

    if ((num & (num - 1)) == 0)
      System.out.printf("Given number is power of 2.\n");
    else
      System.out.printf("Given number is not power of 2.\n");
  }
}

Output:

Enter Number: 32
Given number is power of 2.

 

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