access-modifiers

I've recently been trying to learn the Object-Oriented aspects of F#, and have become curious about how to restrict access to types/modules in the language. More specifically, I want to know the difference between writing this: Example.fsi module Stack = val foo : string Example.fs module Stack = let foo = "foo" let bar = "bar" and alternatively this: module Stack = let foo = "foo" let private bar = "bar" Do they not accomplish exactly the same thing in the end? Coming from a C# background, I'm much inclined just to use the access modifiers over signature (FSI) files. They seem to be more

This question already has answers here : Closed 6 years ago . What is the difference between public, protected, package-private and private in Java? (27 answers) Java has private, protected, and public access modifiers. Can you explain the accessibility scope of these modifiers. How can I access a protected member within a different package? Freak For better understanding you need to see this Access Modifiers Same Class Same Package Subclass Other packages public Y Y Y Y protected Y Y Y N no access modifier Y Y N N private Y N N N Here the important difference is between Default and protected

The following is my ProtectedConstructor.java source code: package protectCon; public class ProtectedConstructor{ public int nothing; ProtectedConstructor(){ nothing = 0; } } And following is the UsingProtectedCon.java source: package other; import protectcon.ProtectedConstructor; public class UsingProtectedCon extends ProtectedConstructor{ //**Line 4** public static void main(String... a) { } } When I compile UsingProtectedCon.java , I get error at Line 4 shown above. It says that ProtectedConstructor() is not public ; so cannot be accessed outside package. However, since my class is public,

why python does not have Access modifier like in c#, java i.e public, private etc.what are the alternative way of encapsulation and information hiding in python. From Wikipedia : [Python] has limited support for private variables using name mangling . See the "Classes" section of the tutorial for details . Many Python users don't feel the need for private variables, though. The slogan "We're all consenting adults here" is used to describe this attitude. Some consider information hiding to be unpythonic, in that it suggests that the class in question contains unaesthetic or ill-planned

I haven't, but I don't say there isn't one. All of the C# developers who read this probably do know what is protected internal and when to use it. My question is simple : did you actually ever use it or worked on a successfully designed project using protected internal access modifier? If yes, please share your knowledge and post nice sample, where I can finally appreciate clever usage of this tricky modifier. // I believe this isn't subjective, I am actually seeking for an answer ;-) I'm sure you can think of examples, but in five years of C# development, I've not seen a good case for it.