Add code for userRepoIssues and JavaDocs

[NazaninAhmady]

Hi Team,

I have added code for the individual part i.e. C.

Also, I add some Java Docs. I used some common java docs tags such as @version @author @since etc.

There are some empty places for author. Please write your names or let me know I can fill it up.

Also, I would appreciate we can merge it today so to avoid further conflicts.

Pending tasks in top of my head are :

1. Test cases
2. Creating a page for part c which will include URL for part c.
3. Extending Javadocs in models and views
4. Doing a word static using Java8 for part see. @flozender @pedramnoori guys would be be able to assist me here ?

Please feel free to assign me tasks. I will do my best.

Thanks Nazanin

[NazaninAhmady]

Hi Team,

I have added code for the individual part i.e. C.

Also, I add some Java Docs. I used some common java docs tags such as @Version @author @SInCE etc.

There are some empty places for author. Please write your names or let me know I can fill it up.

Also, I would appreciate we can merge it today so to avoid further conflicts.

Pending tasks in top of my head are :

1. Test cases
2. Creating a page for part c which will include URL for part c.
3. Extending Javadocs in models and views
4. Doing a word static using Java8 for part see. @flozender @pedramnoori guys would be be able to assist me here ?

Please feel free to assign me tasks. I will do my best.

Thanks Nazanin

Also, I have added code for words stats. It should be able to reverse the words and then also print the count of it.

Could you please review it please @pedramnoori @flozender , Much Thanks!

[flozender]

Thanks for the PR, left a few comments.