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What is so bad about singletons? [closed]

...ton pattern is a fully paid up member of the GoF 's patterns book , but it lately seems rather orphaned by the developer world. I still use quite a lot of singletons, especially for factory classes , and while you have to be a bit careful about multithreading issues (like any class actually), I ...
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What is a NullReferenceException, and how do I fix it?

I have some code and when it executes, it throws a NullReferenceException , saying: 28 Answers ...
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Android: What is better - multiple activities or switching views manually?

... I would say that multiple Activities almost always makes more sense. I just don't think Android is designed for constantly switching its own views - you miss out on so much. You have to implement Back yourself, you don't get any inter-Activity transition...
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How can I use Autolayout to set constraints on my UIScrollview?

...s to achieve what was a trivial scrollview setup prior to autolayout, and it's now official - I must be too stupid. I am setting this up mostly in Storyboard (well, it's just the way it is). ...
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Formatting code in Notepad++

...re a keyboard shortcut to format code in Notepad++ ? I'm mainly working with HTML, CSS and Python code. 12 Answers ...
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Java: Multiple class declarations in one file

...classes in a single source file) would be "mess". Seriously, I don't think it's a good idea - I'd use a nested type in this situation instead. Then it's still easy to predict which source file it's in. I don't believe there's an official term for this approach though. As for whether this actually c...
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AngularJS and its use of Dollar Variables

...g on? So, if angular comes across $scope.$value and $scope.value , then it will avoid checking the former since it's prefixed with a dollar character in its variable name? ...
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How to change the commit author for one specific commit?

I want to change the author of one specific commit in the history. It's not the last commit. 19 Answers ...
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Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du

... Even without the for(;;); how would the attacker get the data? Attacks are based on altering the behaviour of the built-in types, in particular Object and Array, by altering their constructor function or its prototype. Then when ...
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How can I take more control in ASP.NET?

...ich I suspect will be of interest to a few Stack Overflow'rs if I ever get it done. I'm hosting it on my C# in Depth site, which is vanilla ASP.NET 3.5 (i.e. not MVC). ...