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I want to have a variable that I can access anywhere by importing a header file but I also want it to be static in the sense that there is only one of them created. In my .m file, I specify static BOOL LogStuff = NO; and in the initialize method I set the logging value: + (void)initialize { LogStuff = ... //whatever } However I want to be able to access my variable anywhere by importing the .h file so I want to do something like this: static extern BOOL LogStuff; but I'm not allowed to do that. Is it possible to do the thing I'm trying to do? Thanks Adam Rosenfield static in Objective-C means

In JUnit test case, a field annotated by @Rule must be public. It breaks a common Java coding convention (all class member variables should not be public). Why does JUnit require this? Documentation for @Rule : https://github.com/junit-team/junit/blob/master/src/main/java/org/junit/Rule.java The JUnit runner will need to access the field reflectively to run the rule. If the field was private the access would throw IllegalAccessException . Another option would have been to have the runner modify the access from private to public before running the rule. However that could cause problems in case

I have a .Net C# class where I need to make a variable public. I need to initialize this variable within a method (not within the constructor). However, I don't want the variable to be modifieable by other classes. Is this possible? Don't use a field - use a property: class Foo { public string Bar { get; private set; } } In this example Foo.Bar is readable everywhere and writable only by members of Foo itself. As a side note, this example is using a C# feature introduced in version 3 called automatically implemented properties . This is syntactical sugar that the compiler will transform into a

I want to do this but it won't compile: Public MyVariable as Integer = 123 What's the best way of achieving this? .NET has spoiled us :) Your declaration is not valid for VBA. Only constants can be given a value upon application load. You declare them like so: Public Const APOSTROPHE_KEYCODE = 222 Here's a sample declaration from one of my vba projects: If you're looking for something where you declare a public variable and then want to initialize its value, you need to create a Workbook_Open sub and do your initialization there. Example: Private Sub Workbook_Open() Dim iAnswer As Integer

What are valid reasons NOT to use keywords public, private, protected in php? The story: I've started a project with a team that actively uses access modifiers in their code (even "public" explicitly) and wants to convince me to do the same. I always find this kind of stuff totally useless in a dynamic language like php, but I realize that my gut feeling is hardly an argument in a technical discussion. Therefore I'm looking for a solid, clear explanation why access modifiers are useless (or even harmful) in php. I'm aware that some similar topics already exist Importance of protected/private

I'm maintaining a Rails app that has content in the public/ folder that will now need to be protected by a login. We're considering moving those folders of files into a path outside of public/ and writing a Rails controller to serve up the content. Before we begin writing this, I was curious if anyone else has ran into this sort of problem? I looked for some gems / plugins that might already do this but didn't find anything. Has anyone created a gem for this? I've done this on a site where people pay to download certain files, and the files are stored in RAILS_ROOT/private . The first thing to