Java Practice Hub

Small Java programs and Swing apps — learn by opening, running, and tweaking.

     

Start with a short example → run it → change one thing → run again.
Then open a Swing mini-game when you want something visual.

Built for self-study · core Java drills · Hangman, Tic Tac Toe, Memory, and more

📘 PDF manual   ·   🌐 OnlineGDB (single files)   ·   📦 GitHub

 

_{Warm amber practice theme · no green / blue / plum chrome}

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✨ Why this repo?

Many Java courses jump from System.out.println straight into frameworks.
This hub stays small and runnable: one-file drills first, then short Swing projects you can open in an IDE.

🧩 Core Java first	🖥 Desktop when ready
Variables, input, loops, OOP chapters	Hangman, Tic Tac Toe, Memory, SwitchIt…
Run online or with javac / java	Practice layouts, listeners, painting
Change one line, learn by feedback	See a window respond to your clicks

The goal is comfort with Java — not a production product. Ship small wins often.

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🚀 Try it in 60 seconds

1. Open a file from 01-core-java/examples/source/ in OnlineGDB
2. Or locally: javac FileName.java && java ClassName
3. When you want a window, open a project under 02-desktop-projects/ in IntelliJ / Eclipse / NetBeans
4. Play one round of HangMan or Tic Tac Toe — then read the listener code

A good practice session is 20–30 minutes: one core file → one small Swing change.

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🧩 What’s inside

📖 Core Java track Short programs for input, arithmetic, Scanner, and chapter-wise drills (CHAP2–Chap9).	🎮 HangMan Guess letters, update the gallows, practice Swing buttons and state. Correct letters use warm amber — not green.
❌⭕ Tic Tac Toe Two-player board, win highlighting in soft peach, panel layout practice.	🧠 Memory · SwitchIt · Smiley Card matching, button puzzles, and custom Graphics painting.

🗂 Desktop projects

Project	Type	How to run
HangMan	Swing	IDE / NetBeans project
Tic Tac Toe	Swing	IDE
Memory_Game	Swing	IDE
ACP -MyGame_SwitchIt	Swing	IDE
SmileyFrame	Swing graphics	IDE
Swing2 · MouseE · KeyListen	Swing demos	IDE
SearchDisplayWordsCount	Swing	IDE
HasHset · Puzzle · RandomNumbers · …	Console	javac + java

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🎨 Color theme

Desktop apps that used green / blue / yellow system colors for UI chrome now use a warm amber / bronze palette:

Token	Hex	Use
Bronze	#9C6B2F	Primary accents
Amber	#C4923A	Highlights / former blue accents
Success amber	#A67C2D	Correct guesses (former green)
Soft gold	#E0B45C	Soft fills / gallows accents
Warm peach	#E8B896	Win panels (former pink)
Sand	#E8DFD2 / #F3E8D5	Panel backgrounds

Wrong answers still use a warm rust (#B85C38) so feedback stays clear.

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🌱 How to practice

✅ Do this	🚫 Skip this
Run the file before reading every line	Copy-pasting without compiling
Change one value / condition and re-run	Treating Swing apps as “finished products” only
Read the listener that fires on your click	Jumping to big frameworks too early
Keep notes of errors you fixed	—

Read → Compile → Run → Tweak → Re-run → Open a Swing app

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🛠️ For developers

Folder map

Path	Purpose
01-core-java/	Core learning track
01-core-java/examples/source/	Single-file practice
01-core-java/examples/extracted-archives/	Archived extracts
02-desktop-projects/	Swing / console mini-projects
docs/	Screenshots + PDF / HTML manual
.github/workflows/	CI compile checks

Local terminal

javac FileName.java
java ClassName

Regenerate screenshots & PDF

node scripts/docs/capture-screenshots.mjs
node scripts/docs/build-manual.mjs

Requires Node.js. Screenshots use Playwright + system Chrome.

More docs

📘
PDF user manual	Links + screenshots
HTML manual	Same content in the browser

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License

MIT — see LICENSE.

Author

Baheesa Fatima — shared as a Java learning resource for practice and self-study.

PDF manual · GitHub · OnlineGDB