Author Archives: Stanislav_Panteleev

Serialization is the process of converting a Java object into a byte stream — so it can be: Saved to a file Sent over a network Stored in a database Transferred between JVMs Later, you can deserialize that byte stream … Continue reading →

🧠 Why You Might Want a Symbolic Link 🔁 1. Reference a file from multiple places Let’s say you have: And you’re working in multiple projects that all need this config: Rather than copy config.json into each project (and update … Continue reading →

A symbolic link is a special file that points to another file or directory. Think of it like a shortcut or alias. It doesn’t hold the actual data It just contains a reference (a path) to the real file or … Continue reading →

📘 What is a Path? A path is simply the location of a file or directory in the file system.

Great one, Stanley! The path separator character in the file system depends on the operating system — and Java provides a portable way to handle this.

Java allows you to redirect standard input, output, and error streams quite easily using the System class. It’s super useful for logging, testing, piping data between tools, and even simulating a console in GUI apps.

Great one, Stanley! 😎 In Java, working with compressed streams (like ZIP or GZIP) is well-supported — especially for reading/writing data on-the-fly in a compressed format. Here are the key classes you’ll want to know:

📜 File Access Modes in RandomAccessFile 1. “r” — Read-only Read operations only. No writing allowed. File must exist, or you’ll get FileNotFoundException. 🔹 Use Case: Inspect a file without modifying it.

📘 What is RandomAccessFile? It’s part of java.io. Supports both reading and writing. Allows you to move the file pointer to read/write anywhere (random access). Acts like a combination of DataInputStream + DataOutputStream + file pointer control.

To select all files in a specific directory that match a certain criterion — like a file extension — you can use either: FileFilter or FilenameFilter (from java.io) Java 8 Stream API Java NIO DirectoryStream (from java.nio.file)