Prerequisites

⋅⋅Maven ⋅⋅Java 8

Run Application

From the source directory run; mvn clean package navigate to target directory run; java -jar crowdmix-exercise-1.0-SNAPSHOT-jar-with-dependencies.jar

Exercise

Implement a console-based social networking application (similar to Twitter) satisfying the scenarios below.

Scenarios

Posting: Alice can publish messages to a personal timeline

Alice -> I love the weather today

Bob -> Damn! We lost!

Bob -> Good game though.

Reading: Bob can view Alice’s timeline

I love the weather today (5 minutes ago)

Good game though. (1 minute ago)

Damn! We lost! (2 minutes ago)

Following: Charlie can subscribe to Alice’s and Bob’s timelines, and view an aggregated list of all subscriptions

Charlie -> I'm in New York today! Anyone want to have a coffee?

Charlie follows Alice

Charlie wall

Charlie - I'm in New York today! Anyone want to have a coffee? (2 seconds ago)

Alice - I love the weather today (5 minutes ago)

Charlie follows Bob

Charlie wall

Charlie - I'm in New York today! Anyone wants to have a coffee? (15 seconds ago)

Bob - Good game though. (1 minute ago)

Bob - Damn! We lost! (2 minutes ago)

Alice - I love the weather today (5 minutes ago)

Details • The application must use the console for input and output.

• Users submit commands to the application. There are four commands. “posting”, “reading”, etc. are not part of the

commands; commands always start with the user’s name.

o posting: ->

o reading:

o following: follows

o wall: wall

• Don't worry about handling any exceptions or invalid commands. Assume that the user will always type the correct

commands. Just focus on the sunny day scenarios.

• Don’t bother making it work over a network or across processes. It can all be done in memory, assuming that users

will all use the same terminal.

• Non-existing users should be created as they post their first message. Application should not start with a pre- defined list of users.

• Use whichever language, libraries, frameworks and tools you like.

• Provide instructions on how to run the application.

IMPORTANT: Focus on writing the best code you can produce. Do not rush. Take as much time as you need; there is no