Java-Object Oriented

56 posts

Java Exercises - Basic to Advanced Java Practice Programs with Solutions

Last Updated: 18 April 2024

Test your Java skills with our topic-wise Java exercises. As we know Java is one of the most popular languages because of its robust and sec...read more

Output of Java Program

Java

Java-Library

Java-Output

Compile Time Polymorphism in Java

Last Updated: 12 March 2024

Polymorphism in Java refers to an object's capacity to take several forms. Polymorphism allows us to perform the same action in multiple way ...read more

Java

Java-Object Oriented

Picked

The @Override Annotation in Java

Last Updated: 10 January 2023

The @Override annotation is a standard Java annotation that was first introduced in Java 1.5. The @Override annotation denotes that the chil...read more

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Favoring Composition Over Inheritance In Java With Examples

Last Updated: 22 February 2021

Favoring Composition over Inheritance is a principle in object-oriented programming (OOP). Classes should achieve polymorphic behavior and c ...read more

Class Type Casting in Java

Last Updated: 17 September 2021

Typecasting is the assessment of the value of one primitive data type to another type. In java, there are two types of casting namely upcast...read more

What is Has-A-Relation in Java?

Last Updated: 19 January 2021

Association is the relation between two separate classes which establishes through their Objects. Composition and Aggregation are the two fo...read more

Java

Java-Object Oriented

java-inheritance

Difference Between Data Hiding and Abstraction in Java

Last Updated: 09 June 2023

Abstraction Is hiding the internal implementation and just highlight the set of services. It is achieved by using the abstract class and int ...read more

Best Practices of Object Oriented Programming (OOP)

Last Updated: 30 October 2023

As the name suggests, Object-Oriented Programming or OOPs refers to languages that use objects in programming. Object-oriented programming a...read more

Object-Oriented-Design

System Design

Understanding Encapsulation, Inheritance, Polymorphism, Abstraction in OOPs

Last Updated: 21 June 2020

As the name suggests, Object-Oriented Programming or OOPs refers to languages that use objects in programming. Object-oriented programming a ...read more

Upcasting in Java with Examples

Last Updated: 29 November 2022

Inheritance is an important pillar of OOP(Object Oriented Programming). It is the mechanism in Java by which one class is allowed to inherit...read more

Difference between Inheritance and Composition in Java

Last Updated: 22 July 2021

Inheritance:When we want to create a new class and there is already a class that includes some of the code that we want, we can derive our n ...read more

Java

Java-Object Oriented

Inheritance

Convert Json String to Java Object Using GSON

Last Updated: 24 January 2022

Pre-requisite: Convert Java Object to Json String Using GSONJSON Stand for JavaScript Object Notation. It's a standard text-based format whi...read more

Java

Java-Object Oriented

JSON

Concrete class in Java

Last Updated: 16 January 2019

A concrete class is a class that has an implementation for all of its methods. They cannot have any unimplemented methods. It can also exten...read more

Exception Handling with Method Overriding in Java

Last Updated: 09 August 2021

An Exception is an unwanted or unexpected event, which occurs during the execution of a program i.e at run-time, that disrupts the normal fl...read more

Java

Java-Exceptions

Java-Object Oriented

Java-Exception Handling

java-overriding

Accessing Grandparent’s member in Java using super

Last Updated: 05 February 2021

Directly accessing Grandparent's member in Java:Predict the output of the following Java program.[tabby title="Java"][sourcecode language="J ...read more

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