Author Archives: Stanislav_Panteleev

⚡ Let’s dive into the concept of channels in Java NIO — they’re at the heart of NIO’s power and flexibility.

✅ Core Features of Java NIO (New I/O) 🔹 1. Channels Abstraction for reading/writing data to files, sockets, etc. Can be bi-directional (read + write) Work with Buffers, not streams

🧠 Summary Use IO when… Use NIO when… Simpler, small file I/O High-performance or scalable I/O Blocking behavior is okay You need non-blocking I/O (e.g., sockets) You want simplicity You need power, flexibility, and performance ✅ What is a Channel? … Continue reading →

⚙️ Let’s break down the difference between IO (java.io) and NIO (java.nio) — two major APIs for handling input/output in Java.

🔐 In Java 8, creating a Base64 encoder and decoder is super simple using the built-in java.util.Base64 class. Let’s walk through how to create and use both.

🧩 In Java 8, the class introduced for encoding and decoding data, especially in Base64, is: ✅ java.util.Base64 This class provides built-in support for Base64 encoding and decoding — no more need for third-party libraries or Apache Commons!

⚙️ GraalVM is one of the most exciting technologies in the Java ecosystem today. Let’s break it down simply and clearly.

✅ What is jjs? jjs was a command-line tool introduced in Java 8 that allowed you to run JavaScript code directly using the Nashorn JavaScript engine. Think of it as a mini JavaScript REPL or script runner inside your JDK. … Continue reading →

🧠 What is Nashorn? Nashorn is a JavaScript engine built into the Java 8 platform. It allows you to run JavaScript code inside a Java application.

✅ What Is a Repeatable Annotation? It means you can write something like this: To make this possible, you need to define: The repeatable annotation A container annotation that holds multiple instances