docs: adds slides for the 7th lecture

lectures/revealjs/07-debugging.adoc

+= Debugging
+:customcss: slides.css
+:icons: font
+:includedir: includes/
+:LECTURE_TOPIC: Debugging
+:LECTURE_NO: 7th lecture
+
+include::{includedir}header.adoc[]
+
+[.smaller-80][.center-paragraph]
+IT1901 Fall 2024 - {LECTURE_NO}
+
+
+[background-color = "#124990"]
+[color = "#fff6d5"]
+== Overview
+[.smaller-80]
+- Administrative issues
+- Debugging
+- Summary
+
+
+[background-color = "#124990"]
+[color = "#fff6d5"]
+== Administrative issues
+
+== 1st individual exercise
+
+- 2 thirds got it approved
+- last chance to deliver
+- mandatory exercise 
+- new deadline 03.10.2024 23:59
+
+
+== Approaching Deadlines
+
+- Torsdag, 03. oktober / 23:59 
+** 1st individual exercise
+
+- Torsdag, 10. oktober / 23:59 
+** 2nd group deliverable
+
+== Next Lecture
+
+* focus on advanced source code management
+* go through the materials before the lecture
+* more interactive
+
+[background-color = "#124990"]
+[color = "#fff6d5"]
+== Debugging
+
+== Debugging
+
+- important part of software development
+- process of finding and fixing faults
+- apparently term became popular in 1940s - Grace Hopper moth inside a computer
+- “bug” was used by Thomas Edison to describe a defect in a technical system 1870s
+
+== Debugger
+
+- tool that allows developer to 
+** inspect values
+** run step by step
+** set "breakpoints"
+
+== Why not printing?
+
+- you can use sysout or logs to help
+- it tends to polute the actual code
+- gets unmanageable very fast in more complex projects
+
+
+
+== Isn`t unit testing enough?
+
+- testing and unit testing are useful and necessary
+- not a replacement for debugging
+- using debugging we can see what is happening in the code not passing the test
+- tests are code too - you can debug the code in your tests as well
+
+
+== Breakpoints
+
+- developer can mark certain spots in the code where the execution should pause
+- at the breakpoint one can decide how to continue
+- one can inspect existing variables and also custom expressions
+
+== Debugging commands
+
+- Step into - follow code into methods, one step at a time
+- Step over - go to the next line whithout going into methods
+- Step out - run to the end of the method and go out to the caller code
+- Continue - run until finding another breakpoint
+
+== Advanced debugging
+
+- conditional breakpoints - excution stops when a condition is met
+- expressions - (watch) - code that evaluates at debug time
+- changing values of runtime variables
+
+== Typical uses
+
+- correcting errors in code
+- tracing the code paths
+- understanding difficult or unfamiliar code
+
+
+
+[background-color = "#124990"]
+[color = "#fff6d5"]
+== Debugging Demo
+
+
+== Questions ?
+
+
+[background-color = "#124990"]
+[color = "#fff6d5"]
+== Summary
+
+include::{includedir}footer.adoc[]
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