(Java) Bank account access simulation:

The bank account should have withdraw and deposit methods (subtract and add 1 from the balance respectively) You should have many (in the thousands) threads representing account users who, upon invocation, sleep for a random number of seconds, and then withdraw or deposit.

There should be an associated GUI that allows the user to start the simulation and it should have a representation of the current amount in the bank account, continually updating as the simulation proceeds.

Take note of how the synchronized keyword and the Thread.sleep() and Thread.join() methods are being used, you will need them.