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Throwing

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How to handle

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Indicate to the compiler and other developers that this piece of Java code should NEVER happen.

Um what's what's happened here did I oh I created it in the wrong module you see I created it in the in the

This lecture goes over the basics of encapsulation and unit testing in Java.

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You've probably seen it: IOrderService, IEmailService, IPaymentService… and every class has exactly one implementation.

Explains the difference between the access modifiers in Java.

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