Section outline

  • Overview: Lesson 3 is the true start of hands-on Java programming. Students write the classic “Hello World” and learn the basic structure of a Java program. More importantly, they learn to face and overcome errors – both compilation errors and runtime errors. The tone is encouraging: errors are like an opponent’s punches; with training, you learn to dodge and counter them. By the end, students won’t fear errors but see them as guidance.

    • Micro-Topic 1: Anatomy of a Java Program – Classes, Methods, and Braces

      Goal: Explain the structure of a basic Java program. Students learn about the class definition, the main method signature, and how curly braces {} define code blocks. This is the skeleton they will use for every program.

    • WB L3 1 Anatomy of a Java Program FREE SCORM package

    • Micro-Topic 2: Writing Your First Program – Hello, World!

      Goal: Guide through writing a simple “Hello, World!” program (again, but now focusing on each part of writing it themselves). Demonstrate how to run it (in IntelliJ or command line), and that it prints output. It reinforces the structure from micro-topic 1 with a concrete example.

    • WB L3 2 Writing Your First Program FREE SCORM package

    • Micro-Topic 3: Understanding the Code – Breaking Down Hello World

      Goal: Delve a bit deeper into what each part of the Hello World code does, but in beginner-friendly terms. Clarify any points of confusion (like “public static void”) at a superficial level and promise deeper coverage later. Ensure the student conceptually knows which part is the class, which is the method, which is the statement, etc.

    • WB L3 3 Understanding the Code FREE SCORM package

    • Micro-Topic 4: Java Syntax Essentials – Common Mistakes (Case, Semicolons, Braces)

      Goal: Highlight the most common syntax mistakes beginners make and how to avoid/fix them: missing semicolons, mismatched braces, wrong case in identifiers, and similar pitfalls. Train them to carefully pay attention to these “small” things that are very important in Java.

    • WB L3 4 Java Syntax Essentials FREE SCORM package

    • Micro-Topic 5: Embracing Errors – Reading and Debugging Basic Errors

      Goal: Teach students how to interpret error messages and debug simple issues. Emphasize that errors are normal and how to systematically fix them (check line numbers, the message, likely causes, etc.). Build confidence that they can overcome errors rather than feeling defeated.

    • WB L3 5 Embracing Errors FREE SCORM package

    • Micro-Topic 6: Common Errors in Hello World – Examples and Solutions

      Goal: Show a few concrete examples of mistakes in a Hello World program and walk through solving them. This ties together micro-topics 3, 4, 5 by demonstrating the debugging thought process. It builds confidence that they can fix issues on their own.

    • WB L3 6 Common Hello World Errors FREE SCORM package