Java Coding Apprentice
Go from your very first line of code to a fully playable game. Across 8 units you’ll learn real Java — and build a text-based Escape Room you can actually play, one unit at a time.
Welcome to the Course
This course teaches you to program in Java, one of the most widely used languages in the world — it powers everything from Android apps to massive business systems. You’ll begin with no assumptions about prior experience and finish able to write, compile, and run real Java programs with confidence.
Every unit is hands-on. You’ll read short explanations, try interactive examples, and write code at each step. And instead of disconnected exercises, your learning is tied together by one ongoing project that grows with your skills.
What You’ll Learn
💻 Write Real Code
Set up a Java environment, master syntax and structure, and run programs through the edit-compile-run cycle.
🧮 Work With Data
Store and transform values using variables, primitive types, type casting, and user input.
🔄 Control the Flow
Make decisions with conditionals and repeat actions with loops to build interactive logic.
🧱 Think in Objects
Design classes, use inheritance and polymorphism, and organize code the way professionals do.
📊 Manage Collections
Group data with arrays, 2D arrays, and ArrayLists to handle many values at once.
🛡️ Handle Errors
Write robust programs using exceptions, try-catch, and your own custom error types.
The 8 Units
One Project, Eight Levels
Certification & What You Need
This course is aligned to the Java Coding Apprentice (JCA) certification. Each unit maps to specific exam objectives, and completing all 8 units prepares you to demonstrate that you can write, run, and reason about real Java programs.
| What You Need | Details |
|---|---|
| Prior experience | None required — the course starts from the very beginning |
| A computer | Windows, Mac, or Chromebook all work |
| Java tools | The JDK and an editor (set up in Unit 1) — or the free online Replit option, no install needed |
| Time | About 4 hours per unit, 32 hours total — learn at your own pace |
Ready to Begin?
🚀 Start With Unit 1
Your Java journey begins with understanding what Java is, getting your tools set up, and writing your first program. Let’s go!
Open Unit 1 →Course Content