In shared databases, such as bank balances, or airline seats, there are two classes of users: Readers -- never modify database.

Writers -- read and modify database

In these applications, it should be allowed that many readers can access at same time.

only one writer can access at same time.

Q: Implement the above scenario in java applying number of threads for the best possible solution and compile and print the performance output at least three times for the same program ( with comment )