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Java program to check nth bit of 16-bit number is set or not

Given/input a short integer (i.e., 16-bit number), we have to check its nth bit is set or not.
Submitted by Nidhi, on March 10, 2022

Problem statement

In this program, we will read a 16-bit integer number from the user. Then we will check nth bit of the 16-bit number is set or not.

Java program to check nth bit of 16-bit number is set or not

The source code to check nth bit of the 16-bit number is set or not is given below. The given program is compiled and executed successfully.

// Java program to check nth bit of 
// 16-bit number is set or not

import java.util.Scanner;

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

    short n = 0;
    short k = 0;

    System.out.printf("Enter a 16 bit number: ");
    k = SC.nextShort();

    System.out.printf("Enter the bit number: ");
    n = SC.nextShort();

    if (n < 0 || n > 16) {
      System.out.printf("Enter between 0-15\n");
      return;
    }

    k = (short)(k >> n);

    if ((k & 1) == 1)
      System.out.printf("BIT number %d is set\n", n);
    else
      System.out.printf("BIT number %d is not set\n", n);
  }
}

Output

Enter a 16 bit number: 9
Enter the bit number: 3
BIT number 3 is set

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 a 16-bit integer and bit number from the user using Scanner class and checked bit number of the given number is HIGH or not and printed the appropriate message.

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