End of the Chapter

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• The description of the Point, class Point class
• constructor, overloaded Several options in constructor parameters.
• object reference, picture A picture of reference variables and the objects they refer to.
• The toString() toString() method.
• method, parameter less Using a method that does not need a parameter.
• temporary object Temporary objects.
• object, method changes state A picture, showing a new object created with different data.
• The equals() equals() method.
• Definition of alias alias.
• What the == operator == operator does.