Debugging
Also known as: troubleshooting, fixing bugs
The systematic process of finding, diagnosing, and correcting errors (bugs) in a program. Programs rarely work perfectly the first time—debugging is unavoidable.
💡 Intuition
Detective work—observe the wrong output, form a hypothesis, test it, then fix what's wrong.
Core Idea
Debugging is systematic: reproduce the bug, isolate the cause, apply a fix, then verify it works.
🔬 Example
🎯 Why It Matters
Programs rarely work perfectly the first time—debugging is unavoidable.
⚠️ Common Confusion
The bug might not be where the error appears—trace backward.
Related Concepts
How Debugging Connects to Other Ideas
To understand debugging, you should first be comfortable with algorithm. Once you have a solid grasp of debugging, you can move on to testing.
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Go Deeper
Frequently Asked Questions
What is Debugging in CS Thinking?
The systematic process of finding, diagnosing, and correcting errors (bugs) in a program.
Why is Debugging important?
Programs rarely work perfectly the first time—debugging is unavoidable.
What do students usually get wrong about Debugging?
The bug might not be where the error appears—trace backward.
What should I learn before Debugging?
Before studying Debugging, you should understand: algorithm.