Java classes modifiers

Question

I am preparing for OCA exam. I have read that a class can be public, protected or private. I have also read that private and protected classes can be just inner classes (as a class defined in another one). I have seen that I can declare a class with no access modifier, which can be an inner class (as the protected and the private ones) and also a class in a .java file (as a public class). My question is: Do these two classes have a default/package-protected modifier, or what are their modifiers?

possible duplicate of [In Java, what's the difference between public, default, protected, and private?](http://stackoverflow.com/questions/215497/in-java-whats-the-difference-between-public-default-protected-and-private) — turbo, Dec 12 '13 at 16:02
Consult the [JavaDocs](http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html). — Jeroen Vannevel, Dec 12 '13 at 16:02
Now I see: I cannot import classes if they are not public in other packages or protected or default in the same package, or if they are private. — thedarkside ofthemoon, May 23 '14 at 12:26

score 2 · Answer 1 · edited Dec 12 '13 at 16:13

A.S gives access privileges to outside of application

                         Private    Public  Protected   No modifier
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      Yes   Yes             No
Different package non-subclass  No      Yes    No             No

score 0 · Answer 2 · answered Apr 20 '18 at 06:15

Modifiers --- SameClass ---Package---Subclass(same pkg)--- Subclass(diff pkg) --Anywhere)

public ----------> yes ---------> yes-----------> yes ------------------------> yes ---------------------> yes

protected ------> yes--------> yes -----------> yes ------------------------> yes ---------------------> No

no modifier
(default) -------> yes--------> yes -----------> yes-------------------------> No ----------------------> No

private----------> yes -------> No------------> No---------------------------> No ----------------------> No

yes -> accessible
No -> not accessible

Java classes modifiers

2 Answers2