Question

I have written a program to understand wait() and notify() methods. But when I run the program it hangs and nothing happens. Basically I want one thread (ThreadDemo) to complete its execution (display its output) thereafter other thread should display its output (ThreadDemo2).

As wait and notify requires the use of same object I have created common class LogicClass.

Can you please point out what is the problem in my code? I have to use these concepts in my project.

Program Link

Answer 1

In the code, I noted at least two problems:

• Your main function does not wait for the child threads to join and so will exit. Use Thread::join.
• You never call show() function that includes the notifyAll.