Q$5$: $($a$)$ Show using a code example how a thread may be created $($and started$)$ using an application class that implements the Runnable interface. Include a mechanism in the Runnable class to allow it to be shutdown gracefully $($i$.$e$.,$ without needing to call the stop$()$ method$).$ Assume you have a bank account class that may be accessed by more than one thread of execution simultaneously. Show how the various business methods of the class may be made thread safe. $10$ MARKS