Weather Data Analyzer

This is a simple desktop application built using Java Swing that lets users view and analyze weather data from different cities over a 7-day period. The app connects to a weather API to fetch real data, then processes it to show useful insights like averages and temperature extremes.

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System requirements

Operating system	Java runtime
Windows 10/11+ (Recommended)	Java 25 or newer

What it does?

• Lets you choose cities via coordinates
• Lets you choose multiple timezones
• Fetches real-time weather data using an API
• Displays 7 days of temperature data in a table format
• Shows simple analysis like:
  • Average temperature
  • Highest temperature
  • Lowest temperature
  • Temperature trends
  • Weather codes
• Uses a clean GUI built with JFrame and BoxLayout
• Exports data into microsoft excel workbook (file)

What I learned from this project

• Working with Java Swing for GUI development
• Using nested data structures to organize structured data
• Connecting a Java program to a real API
• Parsing and handling JSON data
• Applying basic data analysis logic

Purpose of the project

I built this project to practice combining GUI development, API integration, and data handling in Java. It’s like a small weather dashboard that shows both raw data and simple insights in one interface.

Possible improvements

• Add graphs to visualize temperature trends
• Include more weather details like humidity and wind speed
• Expand forecast beyond 7 days