Implement lesson 17 ATM enhancements: business account validation, audit log, currency conversion, money order support, savings account restrictions

Author: thusser252

lesson_15/.vscode/settings.json

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+{
+    "java.compile.nullAnalysis.mode": "automatic"
+}

lesson_17/README.md

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+# Lesson 17: OOP Principles, Part II ([Slides](https://code-differently.github.io/code-society-25-2/slides/#/lesson_17))
+
+## Pre-work
+
+Please review the following resources before lecture:
+
+### Required
+
+* [Object-oriented Programming in 7 minutes | Mosh (Video)](https://www.youtube.com/watch?v=pTB0EiLXUC8)
+* [Naming Convention In Java Tutorial #77 (Video)](https://www.youtube.com/watch?v=QazDDPtSulY)
+
+### Recommended
+
+* [Naming Conventions - Oracle (Article)](https://www.oracle.com/java/technologies/javase/codeconventions-namingconventions.html)
+* [Test-Driven Development (TDD): A Time-Tested Recipe for Quality Software (Article)](https://semaphoreci.com/blog/test-driven-development)
+
+## Homework
+
+- [ ] Complete [Applying SOLID principles](#applying-solid-principles-bank-atm) exercise.