Question

How can I switch back to main thread from a different thread when there is an exception. When an exception is raised on a child thread, I want a notification to be sent to main thread and execute a method from the main thread. How can I do this?

Thanks.

Additional information

I am calling a method from my main method and starting a new thread there after some calculations and changes

Thread thread = new Thread() {     @Override     public void run() {         .....     } } thread.start(); 

Answer 1

When the exception occurs in the child thread, what is the main thread going to be doing? It will have to be waiting for any errors in a child thread.

You can establish an UncaughtExceptionHandler in the child thread, which can raise an event that the main thread is waiting for.