In this tutorial, you’ll learn how to parse JSON in Java with Jackson, one of the most popular JSON libraries in the Java ecosystem.. We’ll walk through two practical examples involving a shopping list and a Person’s profile. We’ll cover everything step-by-step with clearly explained code examples. What is Jackson? Jackson is a powerful JSON …
When working with applications that require structured data — like employee records, product catalogs, or configuration files — XML (eXtensible Markup Language) becomes a go-to format. In Java, one of the most widely-used ways to read and manipulate XML is through the DOM Parser. In this tutorial, we’ll learn: What the DOM Parser is. When …
Want to learn how to create custom annotations in Java? In this hands-on guide, we’ll show you how to build a real-world role-based access control system using them. Java annotations are a powerful feature that allows developers to add metadata to their code. But did you know you can create your own custom annotations to …
How to Create Custom Annotations in Java (With Real-World Example) Read More »
This guide will show you how to implement AES encryption and decryption in Java from scratch. First, we introduce AES, explaining its functionality, different modes of operation, and why it is one of the most secure encryption algorithms available. Next, we provide a step-by-step tutorial, ensuring even beginners can easily understand and implement AES encryption …
Encryption and Decryption Of Data in Java Using AES Algorithm Read More »
Reading and writing files are essential operations in Java for dealing with data efficiently. File handling is one of the key components of Java programming, particularly when it comes to data storage and retrieval. Among Java’s various classes for reading from and writing to files, FileReader and FileWriter are straightforward yet efficient choices for working …
Read and Write Files in Java Using FileReader and FileWriter Read More »