Review: Debugging a program

What is debugging?

Debugging is the process of identifying, isolating, and fixing problems or errors in computer programs.

Purpose of debugging

The purpose of debugging is to ensure that a program runs correctly and efficiently, improving overall performance.

Common debugging tools

- IDE built-in debuggers - Print statements - Logging frameworks - Profiling tools

True or false: Debugging is only needed at the end of development.

False, because debugging should be part of the development process at every stage.

Difference between syntax error and logic error

A syntax error prevents code from compiling, while a logic error causes incorrect results despite successful compilation.

What is a breakpoint?

A breakpoint is a marker set by a developer to pause program execution for inspection and analysis.

Fill in the blank: A ______ helps track variable values during execution.

Debugger

What does 'stepping through code' mean?

It means executing code line by line to observe behavior and identify issues.

True or false: Comments can help in debugging.

True, because comments can clarify code intentions and aid in tracking down errors.

What is a stack trace?

A stack trace is a report of the active stack frames at a certain point in time, useful for understanding errors.

Comparison: Debugging vs. Testing

Debugging focuses on fixing errors, while testing aims to identify errors before they occur.

What is a bug?

A bug is an error, flaw, or unintended behavior in a program that causes it to produce incorrect results.

What is unit testing?

Unit testing involves testing individual components of a program to ensure each part functions correctly.

Fill in the blank: ______ errors are due to incorrect program logic.

Logic

What is code review?

Code review is the systematic examination of code by one or more developers to find bugs and improve quality.