In Java, an exception is an event that occurs during the execution of a program and disrupts the normal flow of instructions. When an exception is thrown, it can be caught and handled by the program, or it can propagate up the call stack until it reaches the top level of the program, at which … Read More “Java | Understanding the concept of exceptions” »
Inheritance is a key feature of object-oriented programming, which allows a class to inherit properties and behaviors from another class. In Java, inheritance is implemented using the extends keyword, which allows a subclass to inherit properties and methods from a superclass. This helps in reducing code duplication and makes it easier to create and maintain … Read More “Inheritance in java” »
In Java programming, constructors and static methods are two important concepts that are used to create and initialize objects, and to perform operations that are not related to any specific instance of a class. In this article, we will explore these concepts in more detail, with examples of how to use them. Constructors In Java, … Read More “Java | Constructors and static methods” »
In Java, access modifiers are used to define the scope and accessibility of variables, methods, and classes. There are four access modifiers in Java: public, private, protected, and the default (package-private) access modifier. Here is a breakdown of each access modifier and how they work in Java: public class MyClass { public int myPublicVariable = … Read More “Java | Access modifiers (public, private, protected)” »
Java is an object-oriented programming language, which means that it is based on the concept of classes and objects. Classes are the blueprint for creating objects, and objects are the instances of classes. In this article, we will discuss how to create classes and objects in Java. Creating a Class in Java A class is … Read More “Java | Creating classes and objects in Java” »
Java is a popular programming language that is used to build a variety of applications, from web-based applications to mobile apps. One of the reasons for its popularity is that it is an object-oriented programming (OOP) language. In this article, we will introduce the basic OOP concepts in Java, including classes, objects, methods, encapsulation, inheritance, … Read More “Java | Introduction to OOP concepts (classes, objects, methods, encapsulation, inheritance, and polymorphism)” »
In Java programming, a set is a collection of distinct elements, i.e., it cannot contain duplicate values. Java provides three built-in classes for working with sets: HashSet, LinkedHashSet, and TreeSet. In this blog post, we will explore these classes in detail, including their similarities and differences, and provide examples of how to use them in … Read More “Java | Working with Sets (HashSet, LinkedHashSet, and TreeSet) and Maps (HashMap, LinkedHashMap, and TreeMap)” »
In Java programming, collections are an important part of any Java program. They allow us to store and manipulate groups of related data in a way that is easy to work with. To access and manipulate the data in these collections, we need to be able to iterate over the contents of the collection. There … Read More “Java | Iterating through collections using loops and iterators” »
Searching and sorting are fundamental operations in computer science, and Java provides several built-in methods for performing these operations on collections of data. In this blog post, we will explore some of the most commonly used searching and sorting methods in Java, including examples of how to use them in Java programs. Searching Collections: Java … Read More “Java | Methods for searching and sorting collections” »
In Java programming, arrays are a powerful tool for storing and manipulating collections of data. However, arrays have a fixed size, which can be limiting in some cases. To work with collections of data that can grow or shrink dynamically, Java provides three built-in classes: ArrayList, LinkedList, and Vector. In this blog post, we will … Read More “Java | Working with ArrayLists, LinkedLists, and Vectors” »