Java Basic

❮ Previous Next ❯ Java Enums In Java, an enum (short for enumeration) is a special data type that allows a variable to be one of a predefined set of constants. This is useful when you know all possible values at compile time. Why Use Enums?         ● To define a fixed […]

❮ Previous Next ❯ Collection in Java Each type of collection has its unique characteristics and is suitable for specific scenarios. Here’s a brief overview of the most common types of collections and when to use them: Commonly Used Collections in Java: 1. ArrayListCharacteristics: An ordered collection of elements that supports indexing.Use When: You need

❮ Previous Next ❯ Exception Handling in Java In programming, an exception is an event that occurs during the execution of a program that disrupts the normal flow of instructions. It usually signals that something has gone wrong, such as trying to divide by zero, accessing an array out of bounds, or reading a file

❮ Previous Next ❯ Encapsulation in Java Encapsulation is a fundamental concept in object-oriented programming that allows you to bundle the data (attributes) and methods (functions) that operate on the data into a single unit or class. It also provides control over the access to the data by using access modifiers. Think of it as

❮ Previous Next ❯ Interfaces in Java An interface in Java defines a contract that other classes can implement. It declares a set of methods that implementing classes must provide but doesn’t contain any implementation details itself; it only defines the method signatures.It is commonly used to achieve multiple inheritance, as classes in Java cannot

❮ Previous Next ❯ Abstract in Java In Java, an abstract class is a class that is declared with the abstract keyword. It can contain both abstract methods (methods without a body) and non-abstract methods (methods with a body). An abstract class cannot be instantiated directly; its implementation must be provided by a subclass. In