hulqBASH

hulqBASH: Hosted Universal Language Qualifier in BASH

Evaluation

We are hosting an independent service (on a separate EC2 instance) to compile, execute, and evaluate source code.

Languages Currently Supported: Java(8)[.java], C[.c], C++[.cpp], C#[.cs]

Uploads

An S3 bucket in Amazon uses a key instead of a filename to reference a specific file.

Code snippet template should be named with the key = template_TEMPLATE_ID in the database.

This file is an incomplete source file (to be provided to the individual taking the assessment).

Code snippet solution should be named with the key = solution_TEMPLATE_ID in the database.

Solutions

Use the following schema to define command line arguments (note: individual command line arguments cannot contain white space, single quotes, double quotes, or back-ticks). The comment block should be in the solution file for the particular snippet.

Also, for the purposes of grading, only the OUTPUT of a file will be compared to the output of the solution for grading. Thus, the solution file MUST include a system.out.println(), << cout, printf(), etc. And the prompt should indicate that the submitted file must include the same for grading purposes.

/*
  @ArgSet(1)
  argument1 % Comment about argument1
  argument2 % Comment about argument2
  argument3 % Comment about argument3
  argument4 % Comment about argument4

  @ArgSet(2)
  argument1 % Comment about argument1
  argument2 % Comment about argument2

  @ArgSet(3)
  argument1 % Comment about argument1
  argument2 % Comment about argument2
  argument3 % Comment about argument3
*/

Each @ArgSet(X) defines a test case. For example, if we want to test a Palindrome class, we would use

java Palindrome argument1 argument2 argument3 argument4

for ArgSet(1),

java Palindrome argument1 argument2

for ArgSet(2), and

java Palindrome argument1 argument2 argument3

for ArgSet(3).

---

Full Example

public class Palindrome
{
    public static boolean isPalindrome(String s)
    {
        if(s.length()==0)
            return false;
        else if(s.length()==1)
            return true;
        else if(s.length()==2)
        {
            if(s.charAt(0)==s.charAt(1))
                return true;
            else
                return false;
        }
        else if(s.charAt(0)==s.charAt(s.length()-1))
            return palindrome(s.substring(1,s.length()-1));
        else
            return false;
    }

    public static void main(String[] args)
    {
        System.out.println(isPalindrome(args[0]));
    }
}

/*
  @ArgSet(1)
  racecar % true

  @ArgSet(2)
  thisisnotapalindrome % false
  bob % this second argument is ignored

  @ArgSet(3)
  anna % true

  @ArgSet(4)
  raceCar % false (capitalization)
*/

Execution:

> java Palindrome racecar
true
> java Palindrome thisisnotapalindrome bob
false
> java Palindrome anna
true
> java Palindrome raceCar
false

Implementing Additional Languages: