创建线程以在有限计数循环中打印消息

I am not asking for answer and i know this will probably get lot of down-vote but here i go. Where do I start with this ? I have red most of notes i have on concurrent programming and still don't really understand what they want from me. do you guys know about any good tutorials ? About the question do i use join, sleep or isAlive method ?I am not asking for answer and i know this will