Java BitSet Hacker Rank Solution

Hello coders, In this post, you will learn how to solve Java BitSet Hacker Rank Solution. This problem is a part of the Java programming series. One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. If you find any difficulty after trying several times, then look for the solutions.

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Java BitSet- Hacker Rank Solution
Java BitSet- Hacker Rank Solution

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Java BitSet Hacker Rank Solution


Java’s BitSet class implements a vector of bit values (i.e.:  () or  ()) that grows as needed, allowing us to easily manipulate bits while optimizing space (when compared to other collections). Any element having a bit value of  is called a set bit.

Given  BitSets,  and , of size  where all bits in both BitSets are initialized to , perform a series of  operations. After each operation, print the number of set bits in the respective BitSets as two space-separated integers on a new line.

Problem Statement: Click Here.

Java BitSet Hacker Rank Solution

import java.util.*;
class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(;
        int n = sc.nextInt();
        int m = sc.nextInt();
        BitSet[] bits = {new BitSet(n), new BitSet(n)};
        for (int i = 0; i < m; i++) {
            String operation =;
            int x = sc.nextInt();
            int y = sc.nextInt();
            switch (operation) {
                case "AND":
                    bits[x - 1].and(bits[y - 1]);
                case "OR":
                    bits[x - 1].or(bits[y - 1]);
                case "XOR":
                    bits[x - 1].xor(bits[y - 1]);
                case "FLIP":
                    bits[x - 1].flip(y);
                case "SET":
                    bits[x - 1].set(y);
            System.out.println(bits[0].cardinality() + " " + bits[1].cardinality());

Disclaimer: The above Problem (Java BitSet) is generated by Hackerrank but the Solution is Provided by Chase2Learn. This tutorial is only for Educational and Learning purposes. Authority if any of the queries regarding this post or website fill the following contact form thank you.


1. HackerRank Java All Problems Solutions

Hackerrank java problems solutions with practical program code examples and step-by-step full complete explanation.

2. Can HackerRank learn Java?

Welcome to the world of Java! In this challenge, we practice printing to stdout. The code stubs in your editor declare a Solution class and the main method. 

3. What is HackerRank Java test?

The HackerRank Skills Certification Test is a standardized assessment to help developers prove their coding skills.

4. Should I put HackerRank certificate on resume?

These certificates are useless, and you should not put them on your resume. The experience you gained from getting them is not useless. Use it to build a portfolio, and link to it on your resume. 

5. Can I retake HackerRank test?

The company which sent you the HackerRank Test invite owns your Test submissions and results. It’s their discretion to permit a reattempt for a particular Test. If you wish to retake the test, we recommend that you contact the concerned recruiter who invited you to the Test and request a re-invite

6. Can I learn Java per month?

you can’t master it in 1 month, it needs continuous hard work and experience. JAVA is a vast language even developers don’t know fully. you go in-depth about each particular class in java. Java is such a platform which have been used in all platform like android, web, and cloud so keep working on your interest. 

Where can I find HackerRank solutions in Java?

in this post you will get all the solutions of HackerRank java Problems.

Finally, we are now, in the end, I just want to conclude some important message for you

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