A Java application that converts text ↔ Morse code with optional audio playback. It can be executed as a command line app or GUI that uses JavaFX.

• Java 17+ JRE to run the pre-built JAR
• Java 17+ JDK + Maven to build from source

# Encode text → Morse
java -jar morse.jar encode "Hello World"

# Decode Morse → text
java -jar morse.jar decode ".... . .-.. .-.. --- / .-- --- .-. .-.. -.."

# Encode with audio tones
java -jar morse.jar encode --play "SOS"

# Decode with audio tones
java -jar morse.jar decode --play "... --- ..."

# Run the GUI
java -jar morse.jar gui

# Help
java -jar morse.jar --help

• . = dot, - = dash
• Single space separates letters
• / (space-slash-space) separates words

• Letters: A–Z (case-insensitive)
• Digits: 0–9
• Punctuation: . , ? ! - / @ ( )

Uses Java's built-in javax.sound.sampled API — no external dependencies.

• Frequency: 700 Hz (classic Morse receiver tone)
• Speed: ~20 WPM standard timing
  • Dot = 60 ms
  • Dash = 180 ms
  • Letter gap = 180 ms
  • Word gap = 420 ms
• Sine-wave with ramp envelope to eliminate clicks

# With Maven (builds fat JAR → target/morse.jar)
mvn package

# Run tests
mvn test

$ java -jar morse.jar encode --play "SOS"
┌─ Input (Text) ────────────────────────────────────────
│  SOS
├─ Output (Morse) ──────────────────────────────────────
│  ... --- ...
└───────────────────────────────────────────────────────

$ java -jar morse.jar decode --play "-- --- .-. ... ."
┌─ Input (Morse) ───────────────────────────────────────
│  -- --- .-. ... .
├─ Output (Text) ───────────────────────────────────────
│  MORSE
└───────────────────────────────────────────────────────

java -jar morse.jar gui