string-calculator

A simple calculator that adds strings

Table of Contents

• Dependencies
• Running the Tests
• Running the Application
• Exercises

Dependencies

What you need:

• Git
• Spring Tool Suite

Running the Tests

Right Click Project -> Run As -> JUnit Test

Running the Application

Right Click Project -> Run As -> Java Application

• Enter Input into the Spring Tool Suite Console See Below:
• Please enter numbers to add: 1,2

Exercises

Write JUnit Tests that will support the following requirements:

1. An empty string returns zero
2. A single number returns the value
3. Two numbers, comma delimited, returns the sum
4. Two numbers, newline delimited, returns the sum
5. Three numbers, delimited either way, returns the sum
6. Negative numbers throw a NegativeNumberException
7. Numbers greater than 1000 are ignored