Java Getting Started concept personal understanding of access modifiers

Whether the corresponding modifiers for classes, methods, member variables, and local variables can be used

Modifier	Class		Member adapting	Construction method	Member variables	Local variables
Abstract (abstracted)		√	√	－	－	－
Static (statically)		－	√	－	√	－
Public (Common)		√	√	√	√	－
Protected (Protected)			√	√	√	－
Private (privately)		－	√	√	√	－
Synchronized (synchronous)		－	√	－	－	－
Native (local)		－	√	－	－	－
Transient (temporary)		－	－	－	√	－
Volatie (volatile)		－	－	－	√	－
Final (do not change)		√	√	－	√	√

class modifier
Public	can be accessed from other classes
Abstract	Cannot be instantiated, can contain abstract methods, abstract methods are not implemented, no specific functions, can only derive sub-classes
Final	Subclass can no longer be declared
constructor Modifier
Public	can be accessed from all classes
Protected	can only be accessed from its own class and its subclasses
Private	can only be accessed in this class
Domain / member Variable modifiers
Public	can be accessed from all classes
Protected	can only be accessed from this class and its subclasses
Private	It can only be accessed from this class
Static	Only one domain value exists for all instances of the class
Transient	is not part of an object's persistent state
Volatile	Can be modified by an asynchronous thread
Final	It must be given an initial value and cannot be modified
Local Variables modifier
Final	It must be given an initial value and cannot be modified
Method Modifiers
Public	It can be accessed from all classes
Protected	It can only be accessed from this class and its subclasses
Private	It can only be accessed from this class
Abstract	No method body, belongs to an abstract class
Final	Subclasses cannot overwrite it
Static	is bound to an instance of the class itself rather than the class
Native	This method is implemented by other programming languages
Asnchronized	Before a thread calls it, it must first add the

Java Getting Started concept personal understanding of access modifiers