A HashMap in Java is a robust data structure that efficiently stores and retrieves key-value pairs. Falling under the ‘Map’ interface in the Java Collections Framework, HashMap offers a dynamic and flexible means of organizing data. The HashMap works on the principle of hashing, which inv...
all objects have somebehaviorsand somestate. The states are stored infields(orvariables) and the behaviors are exposed throughmethods. Regardless of the language, each object has a unique identity and is allocated
Discover What MEAN stack is, a technology stack comprising MongoDB, Express.js, AngularJS, and Node.js for creating dynamic web applications.
Client-server: Client and servers, involved in the communication, are independent of each other. Cache: Cache is an imperative part of REST API in Java as its presence makes recording intermediate responses easier than ever. Layered: REST API features layered structure and each laye...
Packages In Java By: Rajesh P.S.A package is a way to organize and group related classes, interfaces, and sub-packages together. It provides a mechanism for creating a hierarchical structure to organize code and prevent naming conflicts.
IntelliJ IDEA 2025.1 delivers full Java 24 support, introduces Kotlin notebooks, and makes K2 mode the default, marking a major step toward the best Kotlin experience. Debugging is more powerful, with pause and resume functionality for watch evaluations,
The following is java abstract class example. //Show how to create abstract class and method abstract class Shape { abstract void area(); abstract void circumference(); } class Rectangle extends Shape { private double length ,breadth; Rectangle(double x,double y) { length = x; ...
is used to provide type information for existing javascript libraries or modules that do not have built-in typescript support. it declares the structure and types of the external code, enabling typescript to provide better type checking and tooling support. what is an instance variable in object...
Structured programs and modules typically have a header file or section that describes the modules or libraries referenced and the structure of the parameters and module interface. In some programming languages, the interface description is abstracted into a separate file, which is then implemented by...
What is Java? In this article, we explore the history of Java, its key features and benefits, and real-world examples of its applications.