🌦️ Weather App (Java Full-Stack)

A simple full-stack weather application built using pure Java (HttpServer) and a frontend with HTML, CSS, and JavaScript.

🚀 Features

• Search the weather by city
• Real-time weather data using Open-Meteo API
• Lightweight Java backend (no frameworks)
• Clean frontend UI

🛠️ Technologies Used

• Java (HttpServer)
• HTML, CSS, JavaScript
• REST API (Open-Meteo)

📂 Project Structure

src/        # Java backend
web/        # Frontend files

▶️ How to Run

1. Compile

javac src/*.java -d out

2. Run

java -cp out App

3. Open in browser

http://localhost:8080

💡 Future Improvements

• Add weather icons
• 5-day forecast
• Better UI/UX
• Use JSON library (Gson)

📸 Screenshots

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API Example

GET /api/weather?city=Colombo

Example response:

{
  "city": "Colombo",
  "country": "Sri Lanka",
  "latitude": 6.93,
  "longitude": 79.85,
  "updatedAt": "2026-03-18T10:30",
  "temperatureC": 30.2,
  "feelsLikeC": 36.0,
  "humidity": 74.0,
  "windSpeedKmh": 12.6,
  "precipitationMm": 0.0,
  "weatherCode": 2,
  "condition": "Partly cloudy"
}

Notes

• This project uses only core Java, so no Maven or Gradle is required.
• Internet access is needed at runtime because the app fetches live weather data.

👨‍💻 Author

Developed by Kavindu Dissanayaka Madushan

© 2026 Kavindu Madushan. All rights reserved.