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This repository contains solutions to all the HackerRank Java Practice Questions

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Pavith19/HackerRank-Java-Solutions

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HackerRank Java Solutions




Welcome to the HackerRank Java Solutions repository! Here you'll find my solutions to various HackerRank Java practice questions, organized by categories. If you're stuck on any of the challenges, feel free to check this repository for guidance and solutions.

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30 Days of Code

Advanced

ChallengeSolution
Can You Access?Solution.java
Covariant Return TypesSolution.java
Java AnnotationsSolution.java
Java Factory PatternSolution.java
Java Lambda ExpressionsSolution.java
Java MD5Solution.java
Java Reflection - AttributesSolution.java
Java SHA-256Solution.java
Java Singleton PatternSolution.java
Java Varargs - Simple AdditionSolution.java
Java Visitor PatternSolution.java
Prime CheckerSolution.java

BigNumber

ChallengeSolution
Java BigDecimalSolution.java
Java BigIntegerSolution.java
Java Primality TestSolution.java

Data Structures

ChallengeSolution
Java 1D Array (Part 2)Solution.java
Java 1D ArraySolution.java
Java 2D ArraySolution.java
Java ArrayListSolution.java
Java BitSetSolution.java
Java DequeueSolution.java
Java GenericsSolution.java
Java HashsetSolution.java
Java ListSolution.java
Java MapSolution.java
Java Priority QueueSolution.java
Java SortSolution.java
Java StackSolution.java
Java SubarraySolution.java

Exception Handling

ChallengeSolution
Java Exception Handling (Try-catch)Solution.java
Java Exception HandlingSolution.java

Introduction

ChallengeSolution
Java Stdin and Stdout ISolution.java
Java Currency FormatterSolution.java
Java DatatypesSolution.java
Java Date and TimeSolution.java
Java End-of-fileSolution.java
Java If-ElseSolution.java
Java Int to StringSolution.java
Java Loops ISolution.java
Java Loops IISolution.java
Java Output FormattingSolution.java
Java Static Initializer BlockSolution.java
Java Stdin and Stdout IISolution.java
Welcome to JavaSolution.java

Object Oriented Programming

ChallengeSolution
Java Abstract ClassSolution.java
Java Inheritance ISolution.java
Java Inheritance IISolution.java
Java Instanceof KeywordSolution.java
Java InterfaceSolution.java
Java IteratorSolution.java
Java Method Overriding 2 (Super Keyword)Solution.java
Java Method OverridingSolution.java

Strings

ChallengeSolution
Java AnagramsSolution.java
Java Regex 2 - Duplicate WordsSolution.java
Java RegexSolution.java
Java String TokensSolution.java
Java Strings IntroductionSolution.java
Java Substring ComparisonsSolution.java
Java SubstringSolution.java
Pattern Syntax CheckerSolution.java
Tag Content ExtractorSolution.java
Valid Username Regular ExpressionSolution.java

These solutions are my own work and were created for educational purposes on HackerRank. They may not be the most optimal solutions, but they passed HackerRank’s test cases.

We welcome contributions to enhance this collection of HackerRank Java Solutions:

  • Improve Existing Solutions: Optimize or clarify current solutions.
  • Add Explanations: Provide detailed explanations of code and problem-solving approaches.
  • Improve Documentation: Enhance the README, code comments or other documentation.

This project is open source and available under theMIT License.

Connect with me:

_mr_2001__pavith-bambaravanage-465300293@pavith_dbpavith_dbpavithd2020@gmail.com

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