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HastiSutaria/Hackerrank-Solutions

Hackerrank Solutions

30daysofcodehackerrankhackerrank-java-solutionshackerrank-solutionsjava

HackerRank-Solutions

30 Days Of Code

Day Difficulty Score Challenge Solution
Day 0 Easy 30 Hello world Day00.java
Day 1 Easy 30 DataTypes Day01.java
Day 2 Easy 30 Operators Day02.java
Day 3 Easy 30 Intro to Conditional Statements Day03.java
Day 4 Easy 30 Class Vs. Instance Day04.java
Day 5 Easy 30 Loops Day05.java
Day 6 Easy 30 Lets Review Day06.java
Day 7 Easy 30 Arrays Day07.java
Day 8 Easy 30 Dictionaries and Maps Day08.java
Day 9 Easy 30 Recursion3 Day09.java
Day 10 Easy 30 Binary Numbers Day10.java
Day 11 Easy 30 2d Arrays Day11.java
Day 12 Easy 30 Inheritance Day12.java
Day 13 Easy 30 Abstract Classes Day13.java
Day 14 Easy 30 Scope Day14.java
Day 15 Easy 30 Linked lists Day15.java
Day 16 Easy 30 Exceptions-String to Integer Day16.java
Day 17 Easy 30 More Exceptions Day17.java
Day 18 Easy 30 Queues and Stacks Day18.java
Day 19 Easy 30 Interfaces Day19.java
Day 20 Easy 30 Sorting Day20.java
Day 21 Easy 30 Generics Day21.java
Day 22 Easy 30 Binary Search Trees Day22.java
Day 23 Easy 30 BST Level-order traversal Day23.java
Day 24 Easy 30 More Linked Lists Day24.java
Day 25 Medium 30 Running Time and Complexity Day25.java
Day 26 Easy 30 Nested Logic Day26.java
Day 27 Easy 30 Testing Day27.java
Day 28 Medium 30 RegEx, Patterns and Intro to Databases Day28.java
Day 29 Medium 30 Bitwise AND Day29.java

JAVA

Subdomain Difficulty Challenge Solution
Introduction Easy Welcome to Java! Welcome-to-java.java
Introduction Easy Java Stdin and Stdout I Stdin-Stdout-1.java
Introduction Easy Java If-Else If-else.java
Introduction Easy Java Stdin and Stdout II Stdin-Stdout-2.java
Introduction Easy Java Output Formatting Java-output-formatting.java
Introduction Easy Java Loops 1 Java-loops-1.java
Introduction Easy Java Loops 2 Java-loops-2.java
Introduction Easy Java Datatypes Java-datatypes.java
Introduction Easy Java End of file Java-end-of-file.java
Introduction Easy Java Static initializer Block Java-static-initializer-block.java
Introduction Easy Java Int to string Java-int-to-string.java
Introduction Easy Java Date and time Java-date-time.java
Introduction Easy Java currency formatter Java-currency-formatter.java
Strings Easy Java String Introduction Java-string-introduction.java
Strings Easy Java Substring Java-substring.java
Strings Easy Java Substring comparisons Java-Substring-comparisons.java
Strings Easy Java String Reverse Java-string-reverse.java
Strings Easy Java Anagrams Java-Anagrams.java
Strings Easy Java String Tokens Java-String_tokens.java
Strings Easy Pattren Syntax Checker Pattern-Syntax-Checker.java
Strings Medium Java Regex Java-Regex.java
Strings Medium Java Regex 2 Duplicate words Java-Regex2_duplicate-words.java
Strings Easy Valid Username Regular Expression Valid-Username.java
Strings Medium Tag Content Extractor Tag-Content-Extractor.java
Big Number Medium Java BigDecimal Java-Big-Decimal.java
Big Number Easy Java Primality Test Java-primality-test.java
Big Number Easy Java Big Integer Java-BigInteger.java
Object Oriented Programming Easy Java Inheritance 1 Java-Inheritance1.java
Object Oriented Programming Easy Java Inheritance 2 Java-Inheritance2.java
Object Oriented Programming Easy Java Abstract Class Java-AbstractClass.java
Object Oriented Programming Easy Java Interface Java-Interface.java
Object Oriented Programming Easy Java Method Overriding Java-Method-Overriding.java
Object Oriented Programming Easy Java Method Overriding Super Java-Method-Overriding-Super.java
Object Oriented Programming Easy Java Instance Of Java-Instanceof.java
Object Oriented Programming Easy Java Iterator Java-Iterator.java
Exception Handling Easy Java Exception Handling (Try-Catch) Java-Exception-Handling-1.java
Exception Handling Easy Java Exception Handling Java-Exception-Handling-2.java
Data Structures Easy Java 1D Array Java-1D-Array.java
Data Structures Easy Java 2D Array Java-2D-Array.java
Data Structures Easy Java Sub Array Java-Sub-Array.java
Data Structures Easy Java Array List Java-Array-List.java
Data Structures Medium Java 1D Array (Part 2) Java-1D-Array-2.java
Data Structures Easy Java List Java-List.java
Data Structures Easy Java Map Java-Map.java
Data Structures Medium Java Stack Java-Stack.java
Data Structures Easy Java Hashset Java-Hashset.java
Data Structures Easy Java Generics Java-Generics.java

Contributors

HA
Created June 27, 2021
Updated August 17, 2021