Quote:
c. Contact me: It will include your actual contact information as you sent it to your resume.
You've apparently applied for a job and you're asking for guidance on how to write a simple app?
This is a test of YOUR skills. If you can't write this on your own, what makes you think you're going to be able to write code for the actual job? It gets harder from here, not easier.
This stuff is not something you're going to learn in a couple of forum posts. You either know this stuff now or you're wasting the time of the people interviewing you.