On Sunday, March 18, 2018 18:04:13 Tony via Digitalmars-d-learn wrote: > On Tuesday, 13 March 2018 at 06:03:11 UTC, Mike Parker wrote: > > D is not C++, C#, or Java. C++ uses friend to get around the > > issue. Java has no solution. I don't know about C#. > > Java has four protection levels. If you don't explicitly specify > [private, protected, public] the protection level is implicitly > "package-private". That means that any class in the same package > can access that attribute. I believe that Java packages are > identical to D packages.
They're similar, but there are differences. For instance, you can do package(a) in D in order to do something like put the stuff in a.b.c in package a rather than a.b. Also, package functions in D are never virtual, which I expect is not the case for Java. The whole situation is also complicated somewhat by the fact that D allows pretty much anything at module-level, whereas as Java requires one class per module, though I'm not sure that that has much direct effect on package itself other than the fact that it's possible in D to mark stuff package that isn't in a class. - Jonathan M Davis
