ServeltRequest: which encapsulates the communication from the client to the server.
ServletResponse: which encapsulates the communication from the servlet back to the client.
ServletRequest and ServletResponse are interfaces defined by the javax.servlet package.
What is an objects lock and which objects have locks?
What state does a thread enter when it terminates its processing?
Why would you use a synchronized block vs. synchronized method?
When you will synchronize a piece of your code?
Is there a separate stack for each thread in Java?
How would you implement a thread pool?
What is the SwingUtilities.invokeLater(Runnable) method for?
What is a green thread?
What is the volatile modifier for?
Which class is the wait() method defined in?
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