Class Member Access Matrix : Access Control « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » Access Control

5. 25. 4. Class Member Access Matrix


Private    No modifier    Protected     Public



Same class                       Yes        Yes            Yes           Yes



Same package subclass            No         Yes            Yes           Yes



Same package non-subclass        No         Yes            Yes           Yes



Different package subclass       No         No             Yes           Yes



Different package non-subclass   No         No             No            Yes

5. 25. Access Control
	5. 25. 1.	Access Control: four access control modifiers
	5. 25. 2.	Class Access Control Modifiers
	5. 25. 3.	Using Access Attributes
	5. 25. 4.	Class Member Access Matrix
	5. 25. 5.	Specifying Access Attributes
	5. 25. 6.	The public Book class
	5. 25. 7.	Default access level
	5. 25. 8.	Class Member Access Control Modifiers
	5. 25. 9.	Composition with public objects
	5. 25. 10.	The protected keyword
	5. 25. 11.	Private Override
	5. 25. 12.	Understand the effects of public and private access
	5. 25. 13.	In a class hierarchy, private members remain private to their class.
	5. 25. 14.	A Superclass Variable Can Reference a Subclass Object
	5. 25. 15.	Create a Singleton Object

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