Java access control

There are two levels of access control:

* At the top level—public, or package-private (no explicit modifier).
* At the member level—public, private, protected, or package-private (no explicit modifier).

Access Levels

Modifier	Class	Package	Subclass	World
public	Y	Y	Y	Y
protected	Y	Y	Y	N
no modifier	Y	Y	N	N
private	Y	N	N	N