Welcome to my Java Learning Repository β a collection of all my Java learning materials, code samples, and practice exercises.
This repository is designed to help quickly revise core Java concepts, especially for interview preparation, without distractions.
This folder contains topic-wise notes and minimal runnable examples for each major Java concept.
It follows a cheat-sheet style, helping you revise every important point in minutes.
Ideal for last-minute revision before technical interviews or exams.
Inside this repository, Iβve also added a dedicated file named PracticeQuestions.java
, which contains 25+ solved coding problems on:
- Arrays
- Strings
This file includes commonly asked interview questions like:
- Maximum & Minimum in an array
- Reverse array / string
- Find duplicates
- Binary & Linear Search
- Kadaneβs Algorithm (Maximum Subarray Sum)
- Anagram Check
- Palindrome Check
- Longest Substring Without Repeating Characters
π‘ All questions are written in clean, minimal, and beginner-friendly Java code, perfect for self-practice and confidence building.
- To learn and revise Java quickly.
- To cover all core topics in a concise and easy-to-understand format.
- To help freshers and developers prepare for Java interviews.
- To serve as a reference kit for everyday programming.
- To practice essential coding questions commonly asked in interviews.
-
Clone the repository:
git clone https://github.com/Nutika16/Java-Crash-Course-For-Interview-Prep.git
-
Open the project in your favorite IDE (IntelliJ IDEA, Eclipse, or VS Code).
-
Explore the folder: Start with files inside javacrashcourseinonevideo/ Each topic includes: A .md file β quick theory notes A .java file β minimal working code
- Java Basics
- Data Types & Variables
- Operators
- Control Statements
- Loops
- Methods
- OOPs Concepts
- Arrays
- Strings
- Exception Handling
- Multi-threading
- Collections
Follow the topics in order for best understanding. Each file can be run independently for quick testing. Practice questions are great for last-minute problem-solving review.
This repository is your one-stop Java crash course β ideal for interview preparation, quick recap, and self-practice.
β If you found this helpful, donβt forget to star the repo on GitHub and share it with your friends!