In Java, classes and objects are fundamental concepts of object-oriented programming (OOP). A class is a blueprint for creating objects, which are instances of that class. Objects, in turn, encapsulate data and behaviour associated with a specific entity. Class Definition in Java In Java, a class is defined using the class keyword, followed by the …
OOP Concepts Scenario from Banking System In a banking system, Object-Oriented Programming (OOP) concepts are crucial for modeling and managing various aspects of the system. Here are OOP concepts applied to a banking system: Classes and Objects Account Class: Represents customer bank accounts. Each account is an object of this class. Customer Class: Represents bank …
Object-Oriented Programming (OOP) is a fundamental programming paradigm that has revolutionized the way software is developed, designed, and maintained. OOP provides a structured and organized approach to modelling real-world entities, their behaviours, and their interactions within computer programs. In this introduction, we will explore the core principles and concepts of OOP, its benefits, and its …
Concurrent collections are specialized data structures in programming that facilitate safe and efficient manipulation of shared data by multiple threads in a concurrent environment. Traditional collections, like lists, queues, or maps, often face issues like race conditions when accessed by multiple threads simultaneously. Concurrent collections address these issues by providing built-in thread-safe operations. Concurrent collections …
The StringBuilder class in Java is a mutable sequence of characters. Unlike the String class, StringBuilder objects can be modified without creating new objects. It is similar to StringBuffer but is not synchronized, making it faster for use in single-threaded applications. Features of StringBuilder: Mutability: Modifying a StringBuilder object does not create a new object. …
The StringBuffer class is part of the java.lang package and is used to create and manipulate mutable (modifiable) strings in Java. Unlike the String class, which is immutable, the StringBuffer class allows you to modify the contents of a string without creating new objects each time, which improves performance when performing repeated string concatenation or …
The String class in Java is one of the most widely used and important classes in Java programming. It represents a sequence of characters and is used for storing and manipulating text. The String class is part of the java.lang package, which is automatically imported. In Java, strings are immutable, meaning once a String object …
Concurrent collections are specialized data structures in programming that facilitate safe and efficient manipulation of shared data by multiple threads in a concurrent environment. Traditional collections, like lists, queues, or maps, often face issues like race conditions when accessed by multiple threads simultaneously. Concurrent collections address these issues by providing built-in thread-safe operations. Concurrent collections …
A multi-dimensional array in Java is an array of arrays. It allows you to store data in more than one dimension, such as rows and columns, or even higher dimensions like three-dimensional grids. Multi-dimensional arrays are often used to represent tables, matrices, and grids. Characteristics of Multi-Dimensional Arrays: Array of Arrays: Each element of a …
A single-dimensional array in Java is a linear data structure that holds a fixed-size sequence of elements of the same type. It is one of the most commonly used data structures in Java, particularly when you need to store and access a list of related data elements, such as numbers, strings, or objects. Characteristics of …
