Learn how to efficiently handle file manipulation and stream handling in Java with Apache Common IO library. This tutorial provides examples and best practices for utilizing this powerful library in your Java projects. Apache Common IO is a robust Java library that simplifies input/output operations, making file manipulation and stream handling easier and more…
In Java, the java.util.Arrays class is a utility class that provides various static methods to work with arrays. It includes methods for sorting, searching, copying, filling, and converting arrays. The Arrays class is part of the Java Collections Framework (java.util package) and is widely used when working with arrays in Java applications. Table of…
In Java, the Iterator interface provides a way to traverse (or iterate over) the elements in a collection without exposing the underlying implementation of the collection. It allows you to sequentially access each element in the collection and perform operations like removal, if supported by the underlying collection. Table of Contents Introduction to Iterator…
In Java, Queue and Deque are interfaces in the java.util package that provide implementations for FIFO (First-In-First-Out) and double-ended queue (Deque) data structures respectively. These interfaces are part of the Java Collections Framework and offer a variety of methods for adding, removing, and inspecting elements in a queue or deque. In this tutorial, we'll…
In Java, the java.util.List interface represents an ordered collection of elements. Lists allow duplicates and maintain the insertion order of elements. There are several implementations of the List interface provided by the Java Collections Framework, each with its own characteristics and use cases. In this tutorial, we'll cover some common implementations of the List…
Java Collections Sets play a crucial role in Java programming, offering a powerful way to store unique elements efficiently. In this guide, we'll explore the various types of sets available in the Java Collections framework and how to leverage them effectively in your projects. https://youtu.be/cFc7_ShK07Y Table of Contents Introduction to Sets HashSet LinkedHashSet TreeSet…
In the world of Java testing, frameworks like PowerMock, WireMock, and Mockito play significant roles. They each serve different purposes but are often used together to achieve comprehensive testing for Java applications. In this tutorial, we'll explore these frameworks, their purposes, and provide examples of how to use them. 1. Mockito Purpose: Mockito is…
JavaDoc is a tool provided by Java for generating API documentation in HTML format from comments in source code. It's an essential tool for Java developers to create clear and concise documentation for their classes and methods. In this tutorial, we'll learn how to use JavaDoc effectively with examples. Table of Contents What is…
Apache POI is a popular Java library that allows developers to create, modify, and display Excel files (.xls and .xlsx formats). In this tutorial, we will explore how to use Apache POI to perform common tasks such as reading, writing, and formatting Excel files. Table of Contents Introduction to Apache POI Setting up Apache…
Apache PDFBox is an open-source Java library that allows users to create, manipulate, and extract data from PDF documents. In this tutorial, we'll cover the basics of using PDFBox in a Java project step by step. Prerequisites Before getting started, ensure you have the following: Java Development Kit (JDK) installed on your machine (version…