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8.17. Wrap-Up

In this chapter, we presented additional class concepts. The Time class case study presented a complete class declaration consisting of private data, overloaded public constructors for initialization flexibility, set and get methods for manipulating the class’s data, and methods that returned String representations of a Time object in two different formats. You also learned that every class can declare a toString method that returns a String representation of an object of the class and that method toString can be called implicitly whenever an object of a class appears in the code where a String is expected.

You learned that the this reference is used implicitly in a class’s non-static methods to access the class’s instance variables and other non-static methods. You also saw explicit uses of the this reference to access the class’s members (including shadowed fields) and how to use keyword this in a constructor to call another constructor of the class.


  

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