Java Weather App 🌤️

A simple Java console application that fetches real-time weather data using an external REST API.

Features

• Fetches coordinates of a city using Geocoding API
• Retrieves current temperature and wind speed
• Handles HTTP status codes properly
• Uses custom exception handling
• Clean service-based architecture

Technologies

• Java 17+
• java.net.http.HttpClient
• Gson (JSON parsing)
• REST APIs (Open-Meteo)

How It Works

1. User enters a city name
2. Application fetches latitude and longitude
3. Weather data is retrieved using coordinates
4. Current temperature and wind speed are displayed

Example Output

---- NOW ---- Temperature: 12.7 °C Wind speed: 22.5 km/h Time: 2026-01-27T12:45

Architecture

• WeatherApp → Application entry point
• GeoService → City to coordinates
• WeatherService → Weather data fetching
• Model classes → JSON mapping
• ApiException → Custom error handling

Notes

This project was built to practice:

• REST API consumption in Java
• JSON parsing with Gson
• Exception handling
• Clean code principles