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You need to create an object$-$oriented application to support revenue earned from personal training. To start, you create a detailed UML diagram that helps to plan your solution. Based on the detailed UML diagram below, translate the class definition into a $.$java file, making sure it compiles.

You do not need to create an implementation class.

Your code must compile using th e jGrasp IDE. If your code does not compile using jGrasp $($for any rea son$),$ a grade of $0$ will be earned. No exceptions!

Upload your completed Trainer.java file.