CSE 131 Module 4: Encapsulation

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Goals

• know how to create a class that defines a new type of object,
• know how to declare and use instance variables within a class definition,
• be able to define constructors and accessor methods,
• understand that "new" invokes a constructor to create an object (instance of a class),
• know how to invoke methods on a target object,
• understand the meaning of this, and its implicit use when a target is not named,
• be more comfortable defining methods that describe simple computations, and
• have experience writing test cases.