private

class A { private def sayHello() { println "Anish" } } def a_obj = new A() a_obj.sayHello() output : Anish Is there any way to protect sayHello() in groovy or am I missing something? Andrey Adamovich There is defect on that in Groovy issue tracking system and that defect is still open. tim_yates Searching for [groovy] private reveals: groovy call private method in Java super class What does 'private' mean in Groovy? How to define private getter method in Groovy Bean? It's not clear if it is a bug or by design, but it is going to get looked at again in Groovy 2.0 Jason You can use closures to

Since recent runtimes in iOS, we are able to define properties that will generate accessors for instance variables. From what I understand, it is not mandatory to declare the instance variable used since it will be automatically done for us. For example, if I write: @interface MyFirstClass @property (readonly, nonatomic) int size; @end and in the .m @implementation MyFirstClass @synthesize size; @end Then an instance variable named "size" will be added for me and a method called "-(int)size" will be implemented. The problem is that when I create a second class MySecondClass which is a subclass

I am working on a basic shell interpreter to familiarize myself with Rust. While working on the table for storing suspended jobs in the shell, I have gotten stuck at the following compiler error message: error: cannot invoke tuple struct constructor with private fields [E0450] let jobs = job::JobsList(vec![]); ^~~~~~~~~~~~~ It's unclear to me what is being seen as private here. As you can see below, both of the structs are tagged with pub in my module file. So, what's the secret sauce? mod job { use std::fmt; pub struct Job { jid: isize, pid: isize, cmd: String, } pub struct JobsList(Vec<Job>)

As fields are implicitly private, why there is often explicit declaraion used in the books, articles etc.? Because default access levels vary across languages, and many people program in more than one language. It's easy to become confused, either as the author or as someone reading the code later, thus explicit is nicer to deal with than implicit. The problem with implicit declarations is that the reader cannot tell if whoever wrote the code wanted the implicit declaration or simply forgot to write anything. By being explicit there's no doubt about the intentions. To make your code look nice

After trying to access ivars using KVC, I have noticed that there was no protection on private and protected ivars. It doesn't matter what I put a in front of the ivar (private or protected keyword) - an ivar is always a public ivar when using KVC method "setValue". Here is my code where all of the seven ivars and properties are changeble outside the class instance: //************ interface file ***************// @interface MyClass : NSObject { @public NSNumber *public_num; @protected NSNumber *protected_num; @private NSNumber *private_num; NSNumber *private_property; } @property (retain)

I'm new to Ruby (experienced with Python, C++ and C). I need to create a class that is only to be used by other classes and methods in a module. In Python, I'd just call it __classname. I'd use an empty typedef in C++. How do I do this in Ruby (or am I barking up the wrong tree and not doing this the "Ruby way"?) I haven't seen such concept so far in Ruby, but I guess you could simulate that by creating private method which would return a class created as a local variable (remember that in Ruby, a class is an object just like any other, and can be instantiated in a method and returned by it).