☕ Java GUI Mini‑Suite (NetBeans Projects)

A small collection of three Java Swing desktop apps built in Apache NetBeans IDE 16:

• 🎮 Cross N Knot - Tic‑Tac‑Toe game
• 🧮 SI Calculator - standard arithmetic calculator
• 🔬 Scientific Calculator - extra math functions

Tip: The easiest way to run these is via NetBeans (projects are already configured).

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📦 Projects

Project	What it is	Run in NetBeans	Run as JAR
CrossNKnot	Tic‑Tac‑Toe (X/O)	✅	✅
siCalculator	Standard calculator	✅	✅
simpleScientificCalculator	Scientific calculator	✅	✅

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✅ Requirements

• Java JDK 8+
• Apache NetBeans IDE 16 (recommended)
• (Optional) Ant (NetBeans can run Ant projects automatically)

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🚀 Quick Start (NetBeans)

1. Download / clone this repository
2. Open Apache NetBeans
3. Go to File → Open Project
4. Open any of these folders:
   • CrossNKnot
   • siCalculator
   • simpleScientificCalculator
5. Right‑click the project → Run

NetBeans will use the project configuration to locate the correct Main Class.

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▶ Run the prebuilt JAR (no IDE)

You can find the jar file in each project’s Jar File/ folder, you can run them directly:

# Windows / macOS / Linux (same command)
java -jar CrossNKnot.jar
java -jar siCalculator.jar
java -jar simpleScientificCalculator.jar

If double‑clicking the JAR doesn’t work on Windows, run it from Command Prompt so you can see any error output.

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🧱 Build your own JAR (NetBeans)

For any project:

1. Right‑click the project → Clean and Build
2. NetBeans generates output in that project’s dist/ folder (common default)