enumeration

How can I get the name of a Java Enum type given its value? I have the following code which works for a particular Enum type, can I make it more generic ? public enum Category { APPLE("3"), ORANGE("1"), private final String identifier; private Category(String identifier) { this.identifier = identifier; } public String toString() { return identifier; } public static String getEnumNameForValue(Object value){ Category[] values = Category.values(); String enumValue = null; for(Category eachValue : values) { enumValue = eachValue.toString(); if (enumValue.equalsIgnoreCase(value)) { return eachValue

From a couple of preliminary tests it seems that EnumWindows always returns windows in reverse instantiation order, i.e. most recently instantiated window first. Is that a valid observation? If so, is it true across all versions of Windows? And is this a reliable assumption, i.e. is that behaviour documented somewhere? Context: I'm dealing with a situation where I am triggering a third-party application to open several non-modal windows and I need to send some window messages to those windows once they're open, yet I have no sure-fire way of identifying them as neither their window classes nor

I would like to know how to get a list of all child scopes given a parent scope. All I can find from the properties of the scope are $$childHead, $$childTail, $$nextSibling and $$prevSibling. The approach I'm using now is to get the childHead from the parent and then using the nextSibling to get the next child until nextSibling is null. Is there a better approach? Given that I want to call a method [getModel] on all the children, is there again a better way of doing this? Mark Rajcok The child directives are using isolated scopes and at such have their own values which are not visible from the

I want to count the lines in an NSString in Objective-C. NSInteger lineNum = 0; NSString *string = @"abcde\nfghijk\nlmnopq\nrstu"; NSInteger length = [string length]; NSRange range = NSMakeRange(0, length); while (range.location < length) { range = [string lineRangeForRange:NSMakeRange(range.location, 0)]; range.location = NSMaxRange(range); lineNum += 1; } Is there an easier way? cobbal well, a not very efficient, but nice(ish) looking way is NSString *string = @"abcde\nfghijk\nlmnopq\nrstu"; NSInteger length = [[string componentsSeparatedByCharactersInSet: [NSCharacterSet newlineCharacterSet

How do I stop a block enumeration? myArray.enumerateObjectsUsingBlock( { object, index, stop in //how do I stop the enumeration in here?? }) I know in obj-c you do this: [myArray enumerateObjectsUsingBlock:^(id *myObject, NSUInteger idx, BOOL *stop) { *stop = YES; }]; Christian Dietrich In Swift 1: stop.withUnsafePointer { p in p.memory = true } In Swift 2: stop.memory = true In Swift 3 - 4: stop.pointee = true This has unfortunately changed every major version of Swift. Here's a breakdown: Swift 1 stop.withUnsafePointer { p in p.memory = true } Swift 2 stop.memory = true Swift 3 stop.pointee

I'm rebuilding something in Elixir from some code I built in C#. It was pretty hacked together, but works perfectly (although not on Linux, hence rebuild). Essentially what it did was check some RSS feeds and see if there was any new content. This is the code: Map historic (URL as key, post title as value). List<string> blogfeeds while true for each blog in blogfeeds List<RssPost> posts = getposts(blog) for each post in posts if post.url is not in historic dothing(post) historic.add(post) I am wondering how I can do Enumeration effectively in Elixir. Also, it seems that my very process of