Learn

Great work! Let’s review everything that we’ve learned about object-oriented programming in Java so far.

  • Class: a blueprint for how a data structure should function

  • Constructor: instructs the class to set up the initial state of an object

  • Object: instance of a class that stores the state of a class

  • Method: set of instructions that can be called on an object

  • Parameter: values that can be specified when creating an object or calling a method

  • Return value: specifies the data type that a method will return after it runs

  • Inheritance: allows one class to use functionality defined in another class

Instructions

1.

Inside of the main method, create a new Coffee object called myOrder.

2.

On the next line, call the addSugar method on myOrder and specify 2 as the argument.

3.

Modify the Coffee class so that it inherits from the Beverage class.

4.

Inside of main, call the isFull method on the myOrder object.

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