Project Euler (Java)

This project was created to learn some of the basics of Java programming.

Basic Usage

This repository is structured so that you can clone it and immediately build and run it with Maven. For example, to build and run the unit tests:

podman run --rm -v "$PWD":/usr/src/euler:Z -w /usr/src/euler maven:latest mvn test

To run the first six Project Euler problems in an interactive shell:

podman run -it -v "$PWD":/usr/src/euler:Z -w /usr/src/euler maven:latest /bin/bash

mvn clean compile assembly:single
java -jar target/projecteuler-1.0-SNAPSHOT-jar-with-dependencies.jar 1 2 3..6

NOTE: I personally use podman, but all commands above should also work by replacing podman with docker. I'm not sure if the :Z suffix to the -v volume binding works with docker, however.

Repository Layout

The general layout of this project is as follows:

projecteuler-java
│   .gitignore      # Ignore project build and development artifacts.
│   README.md       # This file.
│   pom.xml         # Project Object Model file for this project.
│
└───data            # Input data used by problems.
│
└───src
    └───main
    │   └───java
    │       └───projecteuler
    │           └───app
    │               │   App.java        # The runtime application.
    │               │   Euler.java      # Problem interface class.
    │               │   Euler001.java   # Solution to Problem #1.
    │               │   ...             # ...additional solutions.
    │               │   Lib.java        # Common use library.
    │
    └───test
        └───java
            └───projecteuler
                └───app
                    │   AppTest.java    # Unit tests for problem solutions.
                    │   LibTest.java    # Unit tests for libraries.