Explain in detail the implementation of multithreaded exception capture runnable in Java

Explain in detail the implementation of multithreaded exception capture runnable in Java

1. Background:

Java multithreaded exceptions are not thrown to the main thread. They are handled by themselves. Exceptions cannot be caught externally. Therefore, it is necessary to realize the capture of child thread exceptions by the main thread. 2. Tools:

Layerinitiask class, threadexception class and thread safe vector implementing runnable interface 3. Idea:

Pass in vector to layerinittask to record exceptions, external traversal, judgment and throw exceptions.

4. Code:

5. Results:

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