Debugging Methodology

Debugging isn’t guessing. Follow a calm, repeatable method: reproduce, locate, understand, fix, and re-test. The detective’s method A worked example The program below should display the largest of three marks. For input 7, 9, 3 it wrongly shows 7. Reproduce: 7, 9, 8 → shows 8, expected 9.Locate: trace shows BEST = 9, then becomes 8 on line 8.Understand: line 7 compares C with A instead of with BEST.Fix: IF…