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https://github.com/apurva313/java

Java code repository showcasing diverse projects, applications, and exercises. Explore Java concepts, algorithms, and applications to enhance your coding skills and deepen your understanding of Java programming.
https://github.com/apurva313/java

java oops-in-java programming

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Java code repository showcasing diverse projects, applications, and exercises. Explore Java concepts, algorithms, and applications to enhance your coding skills and deepen your understanding of Java programming.

Awesome Lists containing this project

README 

        

# Java

Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.



![Java Pic](https://user-images.githubusercontent.com/102182985/261034341-f3c03b4b-5cb6-4ef5-ad35-0a457f5e56cd.png)



## Authors



- [Apurva Kumar](https://www.github.com/apurva313)



## 🚀 About Me



[![linkedin](https://img.shields.io/badge/linkedin-0A66C2?style=for-the-badge&logo=linkedin&logoColor=white)](https://www.linkedin.com/apurva313)

[![twitter](https://img.shields.io/badge/twitter-1DA1F2?style=for-the-badge&logo=twitter&logoColor=white)](https://twitter.com/apurva_313)



## Features



- Platform Independence

- Object-Oriented

- Multi-threading Support

- Security

- High Performance:

- Integrated Development Environment (IDE) Support

- Dynamic Loading and Extensibility



  # Important Topics



- [Object Oriented Paradigms](https://www.geeksforgeeks.org/object-oriented-programming-oops-concept-in-java/) `GFG`

- [Constructors in Java](https://www.geeksforgeeks.org/constructors-in-java/) `GFG`

- [Constructor chaining in Java](https://www.geeksforgeeks.org/constructor-chaining-java-examples/) `GFG`

- [Inheritance in Java](https://www.geeksforgeeks.org/inheritance-in-java/) `GFG`

- [Overriding in Java](https://www.geeksforgeeks.org/overriding-in-java/) `GFG`

- [Abstraction in Java](https://www.geeksforgeeks.org/abstraction-in-java-2/) `GFG`

- [Access modifiers in Java](https://www.geeksforgeeks.org/access-modifiers-java/) `GFG`

- [Wrapper Classes in Java](https://www.geeksforgeeks.org/wrapper-classes-java/) `GFG`

- [Need of wrapper classes in Java](https://www.geeksforgeeks.org/need-of-wrapper-classes-in-java/) `GFG`

- [this keyowrd in Java](https://www.javatpoint.com/this-keyword) `Javatpoint`

- [Important keyowrds in Java inheritance - extends,implements,super,instanceof](https://www.tutorialspoint.com/java/java_inheritance.htm) `Tutorialspoint`

- [Instance initializer block](https://www.javatpoint.com/instance-initializer-block) `Javatpoint`

- [Dynamic Method Dispatch or Runtime Polymorphism in Java](https://www.geeksforgeeks.org/dynamic-method-dispatch-runtime-polymorphism-java/) `GFG`

- [Cohesion in Java](https://www.geeksforgeeks.org/cohesion-in-java/) `GFG`

- [Coupling in Java](https://www.geeksforgeeks.org/coupling-in-java/) `GFG`



# Interview Questions

- [Can we declare main() method as private or protected or with no access modifier in java?](https://www.tutorialspoint.com/can-we-declare-main-method-as-private-or-protected-or-with-no-access-modifier-in-java) `Tutorialspoint`

- [Difference between Method Overloading and Method Overriding in Java?](https://www.geeksforgeeks.org/difference-between-method-overloading-and-method-overriding-in-java/) `GFG`

- [Can we declare interface members as private or protected in java8?](https://www.tutorialspoint.com/can-we-declare-interface-members-as-private-or-protected-in-java8) `Tutorialspoint`

- [Can we override a private or static method in Java?](https://www.tutorialspoint.com/can-we-override-a-private-or-static-method-in-java) `Tutorialspoint`

- [What is diamond problem in Java?](https://www.javatpoint.com/what-is-diamond-problem-in-java) `Javatpoint`

- [Can we pass this keyword as argument in a method call?](https://www.javatpoint.com/this-keyword#:~:text=this%3A%20to%20pass%20as%20an%20argument%20in%20the%20method) `Javatpoint`

- [Java constructor returns a value, but what?](https://www.javatpoint.com/java-constructor-returns-a-value-but-what) `Javatpoint`

- [What is covariant return type?](https://www.javatpoint.com/covariant-return-type) `Javatpoint`

- [Private classes and singleton classes in Java](https://www.geeksforgeeks.org/private-constructors-and-singleton-classes-in-java/) `GFG`

- [How to prevent Singleton Pattern from Reflection, Serialization and Cloning?](https://www.geeksforgeeks.org/prevent-singleton-pattern-reflection-serialization-cloning/) `GFG`

- [Double-Check Locking For Singleton Class](https://www.geeksforgeeks.org/java-program-to-demonstrate-the-double-check-locking-for-singleton-class/) `GFG`



# Practice Problems

- [Inheritance I](https://www.hackerrank.com/challenges/java-inheritance-1/problem?isFullScreen=true) `HackerRank`

- [Inheritance II](https://www.hackerrank.com/challenges/java-inheritance-2/problem?isFullScreen=true) `HackerRank`

- [Java Abstract class](https://www.hackerrank.com/challenges/java-abstract-class/problem?isFullScreen=true) `HackerRank`

- [Interface](https://www.hackerrank.com/challenges/java-interface/problem?isFullScreen=true) `HackerRank`

- [Method Overriding I](https://www.hackerrank.com/challenges/java-method-overriding/problem?isFullScreen=true) `HackerRank`

- [Method Overriding II (Use super keyword)](https://www.hackerrank.com/challenges/java-method-overriding-2-super-keyword/problem?isFullScreen=true) `HackerRank`

- [Java instanceof keyword](https://www.hackerrank.com/challenges/java-instanceof-keyword/problem?isFullScreen=true) `HackerRank`

- [Java Iterator](https://www.hackerrank.com/challenges/java-iterator/problem?isFullScreen=true) `HackerRank`