This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
1. You didn't provide enough info to definitively respond.
2. Threads are funny things. They are not guaranteed to immediately start just because you call start(). You should search for some tutorials on "concurrency" in java for techniques to schedule/coordinate threads in a deterministic manner.