Re: How to make a Java class only visible inside the package & not visible to other packages?

From:

Mark Space <markspace@sbc.global.net>

Newsgroups:

comp.lang.java.programmer

Date:

Thu, 24 Apr 2008 20:47:19 GMT

Message-ID:

<rl6Qj.365$To6.347@newssvr21.news.prodigy.net>

www wrote:

By trying different keywords,

final class Person
{

Yeah, what they said. Make a class package private by using no keyword
at all.

"class Person {"

is what you want.

...//code omitted

public String getName(){...}
}

This solution has a problem, because I cannot extend Person anymore.

Get rid of the final.

Another question is: since Person is declared as "final" and is only
visible inside the package, then all the "public" methods inside Person
is not "public" anymore, they equal to "protected" methods, correct?

Nope.

public interface People {
  String getName();
}

public class PeopleProxy {
   static public People getPeople() { return new Person(); }
}

class Person implements People {
   String name;
   public String getName() {return name;};
}

Now, Person is package private, but getName can be accessed through the
public interface People. I think. :) I didn't try it, but private
classes can be exported this way (Iterator is popular) so I think this
will work.