Beginner module
Module 1: Getting Started with Java
A deep dive into the absolute basics: understanding the Java ecosystem, setting up your environment, and compiling and running your first program with confidence.
Lessons
6
Short units, clear order.
Starts with
Java Ecosystem Deep Dive: JDK, JRE, and JVM Architecture
Finish line
Troubleshooting: Common First-Time Errors
Lesson checklist
Module 1: Getting Started with Java
Java Ecosystem Deep Dive: JDK, JRE, and JVM Architecture
Explore the core components that power Java. Understand the roles of the JDK, JRE, and JVM, and get a beginner-friendly look at the JVM's internal architecture, including the Class Loader, Method Area, Heap, and Execution Engine.
Understanding Java Bytecode
A beginner-friendly look at what bytecode is, why it is important, and how to inspect it using the `javap` tool.
Setting Up Your Professional Development Environment (IDE)
A comprehensive guide to installing the JDK and setting up a professional Integrated Development Environment (IDE). We will cover IntelliJ IDEA, Visual Studio Code, and Eclipse.
Your First Java Program: A Line-by-Line Walkthrough
Deconstruct the classic "Hello, World!" program to understand the fundamental syntax of a Java application, including classes, the main method, and printing to the console.
Compilation vs. Interpretation: Running Your Code
Understand the two-stage process of executing a Java program: compiling source code into bytecode and then running the bytecode on the JVM, both from the command line and an IDE.
Troubleshooting: Common First-Time Errors
Learn to recognize and fix the most common errors that beginners encounter, such as `javac is not recognized`, `Could not find or load main class`, and common syntax errors.
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