Java Class Attributes (Fields / Properties) Class attributes are variables declared inside a class but outside any method, constructor, or block. They define the state or properties of an object. 1. Types of Class...
Java Classes and Objects Java is an object-oriented programming language, so classes and objects are the foundation of Java programs. 1. What is a Class? A class is a blueprint or template that defines...
Java OOP (Object-Oriented Programming) Object-Oriented Programming (OOP) in Java is a programming paradigm based on objects and classes. Java is a pure OOP language, and OOP concepts make code modular, reusable, and easier to...
Java Recursion Recursion in Java is a programming technique where a method calls itself to solve a problem. It is useful for problems that can be broken down into smaller, similar subproblems. 1. Structure...
Java Scope Scope in Java defines where a variable or method is accessible within a program. Understanding scope is crucial to avoid errors and write clean code. 1. Types of Scope in Java Local...
Java Method Overloading Method Overloading in Java allows multiple methods in the same class to have the same name but different parameters.It is a compile-time polymorphism technique. 1. Rules of Method Overloading Methods must...
Java Method Return Types The return type of a method specifies what type of value the method will return to the caller. If a method does not return a value, we use void. 1....
Java Method Parameters Method parameters are values you pass to a method when calling it. They allow methods to receive input and perform operations with dynamic data. 1. Types of Parameters No Parameters –...
Java Methods (Functions) A method in Java is a block of code that performs a specific task. Methods help reuse code, improve readability, and make programs modular. 1. Syntax of a Method
1 2 3 4 | modifier returnType methodName(parameters) { // code to execute return value; // if returnType is not void } |
modifier...
Java Multi-Dimensional Arrays (2D Arrays) A multi-dimensional array is an array of arrays. The most common type is the 2D array, which is similar to a table or matrix. 1. Declaration and Initialization Syntax:...