Java Calculator Application

Overview

A simple desktop calculator built with Java Swing featuring a modern dark theme interface and basic arithmetic operations.

Key Features

• Basic operations: +, -, *, /, %
• Dark theme with color-coded buttons
• Special functions: sign change (±), percentage (%), clear options
• Error handling for division by zero
• Decimal number support

How to Run

1. Ensure Java JDK 8+ is installed
2. Compile: javac com/mycompany/java_calulator_app/CalculatorApp.java
3. Run: java com.mycompany.java_calulator_app.CalculatorApp

Technical Highlights

• Built with Java Swing for the UI
• Uses GridLayout for button arrangement (5×4 grid)
• Custom color scheme with dark background (RGB 50,50,50)
• Color-coded buttons for intuitive use
• Handles consecutive operations correctly
• Formats results to remove unnecessary decimal places

Implementation

• Main class: CalculatorApp extends JFrame
• Event handling via ButtonClickListener inner class
• Proper operation sequence and calculation logic
• Styled UI components with consistent design