Base: Java and Kotlin Learning Playground

This repository is a collection of small Java (and a few Kotlin) exercises, examples, and algorithms. It includes language basics, data structures, problem-solving snippets, and concurrency demos. Most classes are standalone and meant to be compiled/run individually.

Contents at a Glance

• src/: Ad hoc Java examples (basics, arrays, IO, regex, etc.)
• src/com/aiokleo/problemSolving/: Algorithm practice (two-sum, LRU cache, recursion, string/array tasks)
• src/com/aiokleo/graph/ and src/com/aiokleo/tree/: Graph/tree examples and traversal problems
• src/com/aiokleo/threads/: Threading, futures, executors, and race condition demonstrations
• src/com/aiokleo/annotation/ and src/com/aiokleo/annotations/: Annotation usage and exercises
• src/com/aiokleo/*Pattern* and design/principle folders: OOP principles and design patterns
• src/com/aiokleo/kotlin* and .kt files: Kotlin language examples

Build and Run

This project uses Gradle with the Java plugin. There is no single application entry point, so compile/run the class you want.

Compile a specific class:

javac src/com/aiokleo/problemSolving/twoSum/TwoSum.java

Run it (adjust the classpath and main class as needed):

java -cp src io.topic.problemSolving.twoSum.TwoSum

Notes

• The repo contains compiled .class files and IDE metadata in some folders; these are not required to build/run.
• Many examples read from standard input or print to standard output; check each class for usage details.

Suggested Workflow

• Use an IDE (IntelliJ IDEA) for browsing and running individual classes.
• Search by topic or package to locate examples relevant to a concept.