The superbasics to get started with Scala

This project contains some simple exercises for the scala meetup in Stockholm on Mars 15.

Please follow the installation instructions prior to joining the meetup, it involves some downloading of stuff, so it would be very crowded on the network if everyone try to do this at the venue.

Prerequisites

• Git for getting the tutorial project
• Java JDK 8 to build and run

TLDR;

Install git and java jdk 8, clone this project and continue to SBT

Installation

Git

Linux and Mac should already have git installed However, on mac you might wanna install a later version from Homebrew:

brew install git

Windows

Download and install git: https://git-scm.com/download/win

Java

Install jdk 8 from Oracle: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Choose and download the latest jdk for your operating system, 8u74 at the time of writing

Run installer

Clone repo

Open a terminal window and run the following:

git clone https://github.com/jesperoman/superbasics-get-started-scala.git

cd into the repo:

cd superbasics-get-started-scala

SBT

Run sbt:

Windows command prompt:

sbt

OSX, Linux, git-bash on Windows:

./sbt

Run tests(Inside sbt):

test

Output should look something like this:

[info] Loading global plugins from /Users/jesper/.sbt/0.13/plugins
[info] Loading project definition from /Users/jesper/dev/contacts/project
[info] Set current project to Contacts (in build file:/Users/jesper/dev/contacts/)
> test
[info] Updating {file:/Users/jesper/dev/contacts/}contacts...
[info] Resolving jline#jline;2.12.1 ...
[info] Done updating.
[info] Compiling 1 Scala source to /Users/jesper/dev/contacts/target/scala-2.11/classes...
[info] Compiling 1 Scala source to /Users/jesper/dev/contacts/target/scala-2.11/test-classes...
[info] PhoneBookSpec:
[info] tutorial.PhoneBook
[info] - should Exercise 1: add contact (pending)
[info] - should Exercise 2: Sort by name (pending)
[info] - should Exercise 3: Remove contact (pending)
[info] - should Exercise 4: Search contacts (pending)
[info] - should Exercise 4: get multiple contacts in search result (pending)
[info] - should Exercise 5: concat 2 phonebooks (pending)
[info] - should Exercise 6: Return the first matching contact (pending)
[info] - should Exercise 6: Return None if no match (pending)
[info] - should Exercise 7: Return first matching by number (pending)
[info] - should Exercise 7: Return None if no match (pending)
[info] - should Exercise 8: Find number by name (pending)
[info] - should Exercise 8: Return "Not found" if not found (pending)
[info] - should Exercise 9: Find name by number (pending)
[info] - should Exercise 9: Find name by number should return "No contact" if not found (pending)
[info] Run completed in 407 milliseconds.
[info] Total number of tests run: 0
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 14
[info] No tests were executed.
[success] Total time: 12 s, completed 2016-mar-08 14:22:28
>

All tests should be marked "pending", your assignment is to make them pass!

IDE (Optional)

Some people like using an IDE for programming

Scala IDE

There is an "official" Scala IDE built on eclipse: http://scala-ide.org/

Install it and type "eclipse" in the sbt prompt to create the necessary eclipse project files

$ ./sbt
[info] Loading global plugins from /Users/jesper/.sbt/0.13/plugins
[info] Updating {file:/Users/jesper/.sbt/0.13/plugins/}global-plugins...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Loading project definition from /Users/jesper/dev/superbasics-get-started-scala/project
[info] Updating {file:/Users/jesper/dev/superbasics-get-started-scala/project/}superbasics-get-started-scala-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Set current project to Contacts (in build file:/Users/jesper/dev/superbasics-get-started-scala/)
> eclipse
[info] About to create Eclipse project files for your project(s).
[info] Successfully created Eclipse project files for project(s):
[info] Contacts
>

Import in eclipse with: File > Import > General/Existing Project into Workspace

Choose the root of the cloned git repo, choose "Contacts" and click Finish

Intellij IDEA

You can also use the Intellij IDEA which support scala and sbt projects out of the box. The CE version is available as a free download: https://www.jetbrains.com/idea/download/ Just choose "open project" and point to the cloned git repo

Others

Of course, any text editor will work, VIM, Emacs, Nano, Notepad, Atom, Sublime, etc.

Finally

Now you're prepared for the meetup, congratulations!

Beginners guide to scala

guide.md

Further

Continue to the exercises