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Java program to find the position of MSB bit of an integer number

Given/input a number, we have to find the position of MSB bit of the given number.
Submitted by Nidhi, on March 11, 2022

Problem Solution:

In this program, we will read an integer number from the user. Then we will find the Most Significant Bit (MSB) of the input number and print the result.

Program/Source Code:

The source code to find the position of the MSB bit of an integer number is given below. The given program is compiled and executed successfully.

// Java program to find the position of MSB bit 
// of an integer number

import java.util.Scanner;

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

    int num = 0;
    int pos = 0;

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

    while (num > 0) {
      pos++;
      num = num >> 1;
    }
    System.out.printf("Position of MSB bit is: %d\n", pos - 1);
  }
}

Output:

Enter Number: 14
Position of MSB bit is: 3

Explanation:

In the above program, we imported the java.util.Scanner package to read the variable's value from the user. And, created a public class Main. It contains a static method main().

The main() method is an entry point for the program. Here, we read an integer number from the user and found the MSB of a given number using the bitwise right shift operator and printed the result.

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