These are the two tasks which dev candidates had to do live whilst I watched for the interview. The first one is a test of algorithmic skillz where the second is about seeing if you can adapt to new APIs by reading docs.

DongleRounding.java

package net.cubecraft.devtask.donglerounding;

public class Main {


    /*
       Welcome to Dongle Rounding!
        SHOW OF YOUR KNOWLEDGE OF TESTING. USING A TESTING FRAMEWORK OF YOUR CHOICE, WRITE A TEST CLASS FOR THIS

       You will be given a double, in the method double dongleRound(double roundMe);
       
       To perform a DongleRounding you start from the end and round it each number from the end until there are no more decimal places.

       For example:
       3.4449 -> 3.445 -> 3.45 -> 3.5 -> 4
       11.45 -> 11.5 -> 12 (NOT 10)
        10.3349 -> 10.335 -> 10.34 -> 10.3 -> 10
        
        EXTRA TASK: Rewrite dongle rounding so whenever there is a 5 there is a random chance of it rounding up or down
        */



    private static double dongleRound(double roundMe) {
        return 0.0;
    }


    public static void main(String[] args){
        p("*** CUBECRAFT DEVELOPER ASSESMENT ***");
        p("TASK ONE: DONGLE ROUNDING");
        p(3.4449 + " -> " + dongleRound(3.4449)); //4.0
        p(3.649 + " -> " + dongleRound(3.649)); //4.0
        p(11.45 + " -> " + dongleRound(11.45)); //12.0
        p(12394.44445 + " -> "+ dongleRound(12394.4445)); //12395
        p(10.2349 + " -> " + dongleRound(10.2349)); //10.0
        p(10.9994 + " -> " + dongleRound(10.9994));//11.0
        p(45 + "->" + dongleRound(45)); //45.0
    }


    private static <T> void p(T p){
        System.out.println(p);
    }


}

InsultingCat.java

package net.cubecraft.devtask.insultingcat;

import java.io.IOException;

import java.util.ArrayList;
import java.util.List;



public class Main {


    /*
    This is a test of working with an API you hopefully haven't used before.
    
    IT IS EXPECTED YOU USE WHAT I CALL THE "INTERNET"
    
    Use Spark to create a web server, I need you to create three routes.
    It should run on port 1337

    localhost:1337/cat.jpg returns the JPEG image of the cat picture found in cat_picture_url
    /insult returns a random plain text insult from the insults list

     /pretty returns in html:
         - A random insult in a <h1> tag
     - An <img> tag showing the cat from cat.jpg <img src

     */

    public static void main(String[] args) throws IOException {

    }

    private static String cat_picture_url = "CHANGE ME"; // I used this image http://imgur.com/RIFzgZc
    private static List<String> insults = new ArrayList<>();

    static {
        insults.add("You look ugly");
        insults.add("The recursive function calculating your mass caused a stack overflow");
        insults.add("This is an insult");
        insults.add("Also an insult");
    }

}