exception vs. multiple-thread



some questions regarding exception vs. multiple-thread :

1. there are one main thread and one child thread. the child thread may throw one exception but it doesn't try to catch any exception. in the main thread, it tries to catch excpetion. can main thread catch the exception that is thrown from child thread?

2. if child tread may throw exception, and neither main tread nor child tread will catch exception. what is the consequence if the child tread really throws one exception. which tread is crash? or both crash?



anyone can help? thanks.