EX $9\mathrm{.}1$ Draw a UML class diagram showing an inheritance hierarchy containing classes that represent different types of clocks. Show the variables and method names for two of these classes.

Must Contain

$1)$ source code files: Coin, MonetaryCoin, and MonetaryCoinDriver.

$2)$ Screenshot$($s$)$ in JPEG showing your program is compiled and executed result.

Additional Requirements:

$1)$ The driver class contains main should be named MonetaryCoinDriver

$2)$ In main, create $12$ MonetaryCoin objects, which should be hold and processed in an array.

$3)$ Follow standard program requirements: $,$ such as proper format of source code, proper identifier naming, adequate comments, etc.

$4)$ The assignment won't get a pass grade if it contains compile error $/$ fail to compile.