Workshop Overview (≈ 5 minutes)

Total time goal: ≈ 50 minutes

• Start Guide – 5 minutes (already completed)
• Level 1 – Reading Errors – 10 minutes
• Level 2 – Debugger Basics – 12 minutes
• Level 3 – Multi‑File Debugging – 13 minutes
• Level 4 – Layered Bugs – 10 minutes (stretch / as time allows)

Goals

By the end of this workshop, you should be comfortable with:

• Finding and understanding:
  • Compile‑time errors
  • Runtime exceptions
  • Logic bugs (wrong behavior, no crash)
• Using the debugger (not just System.out.println):
  • Setting and using breakpoints
  • Stepping over / into / out of methods
  • Inspecting variables and object state
  • Reading the call stack to trace where a bug starts
• Working with multiple files:
  • Stepping into helper classes
  • Following control flow across files
  • Fixing one bug without introducing another

Structure and pacing

Each Level follows a similar pattern:

1. Setup – copy/paste the starter code into the right file(s).
2. Run and observe – see what error or wrong behavior appears.
3. Investigate – use the debugger (and sometimes print statements) to narrow down the issue.
4. Fix – change the code to correct the bug.
5. Reflect – short questions to connect the bug to a concept.

Instructor suggestion:

• Pause briefly between Levels to:
  • Ask a couple of check‑in questions.
  • Share a “live” debugging demo if many students are stuck.

Solutions for all Levels are collected in the Solutions & Fixes chapter so you can review them after class (or use them as backup during class).