Beginner module
Module 1: Start Coding in Java
Run Java code first, understand how source becomes a program, install and verify JDK 25, then compile and debug a local Java file.
Module lessons
Module 1: Start Coding in Java
How Java Turns Source into a Running Program
Build an accurate beginner mental model of Java, connect source code to visible output, and learn a repeatable way to practise without trying to memorize everything at once.
Understand and Change Your First Java Program
Read the minimum structure of a Java program, connect braces and statements to their roles, compare `print` with `println`, and repair several common syntax mistakes.
Install Java 25 and Verify the Right JDK
Install a complete Java 25 JDK, verify the runtime and compiler, detect conflicting Java versions, and choose an editor without confusing the editor with Java itself.
Compile, Run, and Debug a Local Java Program
Create `Main.java`, compile it into bytecode, run the class, understand why edits require recompilation, and repair realistic source, file-name, and terminal mistakes.
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