Pair Sum Application

Overview

This project is a Spring Boot Kotlin application that finds pairs of integers in an array whose sum equals a given target value.

Features

• Accepts user input via the command line.
• Handles negative numbers, duplicates, and trailing spaces.
• Supports multiple pairs
• Includes unit tests

Technologies Used

• Kotlin (Language)
• Spring Boot (Framework)
• Maven (Build Tool)
• JUnit 5 (Testing Framework)

Prerequisites

• Java 17 or later installed.
• Maven 3.4.1 installed.

Setup and Installation

1. Clone the repository:

   git clone https://github.com/beheidary/kotlinProject.git
   cd kotlinProject

2. Build the project:

   mvn clean install

3. Run the application:

   mvn spring-boot:run

Usage

Input Format

<array of integers> <target sum>

Example

Input:

4 6 -11 1 8 2 56 26 36 10

Output:

Input Array: 4, 6, -11, 1, 8, 2, 56, 26, 36
Target Sum: 10
Pair found: 4 and 6
Pair found: -11 and 1
Pair found: 8 and 2

Exit the Application

Type:

exit

Testing

Run all tests:

mvn test

Sample test cases include:

• Finding multiple pairs.
• Handling invalid inputs.
• Managing edge cases like duplicates and negative numbers.