Java Program Bugs and Software Debugging Overview - Java Tutorial - Appficial

A bug is an error in your computer program that causes it to produce incorrect or unexpected results

The term bug was coined in 1947 by Grace Hopper, an engineer who discovered her program on a Harvard University Mark II computer was not working because a moth was stuck in one of the relays (a type of mechanical switch)

Debugging (troubleshooting) is the process of finding and fixing problems (bugs) in a computer program

There are several approaches to consider when debugging
- Understand and fix compiler errors and warnings
- Write comments in the code to remind yourself to fix it later
- Manually set variables to specific values for verifying your program results
- Temporarily comment out suspected code to disable it
- Insert print statements throughout your program to watch values of variables
- Visually inspect the code, or have a friend/coworker review it
- Use the IDE’s debugger tool
- Use a testing framework such as JUnit

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[Appficial]

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