Efficient way to implement singleton pattern in Java

Efficient way to implement singleton pattern in Java?

Eliminating Singletons

I've been doing a lot of reading about how using singleton classes is becoming bad practice in programming due to hidden dependencies, hard to test etc etc.

Static methods: are they still bad considering PHP 5.3 late static binding?

If you search on the reasons why static methods are bad the first thing you find it is because you can't override it when you are unit testing.

Short hand for [[UIApplication sharedApplication] delegate]?

I stored global variables in my AppDelegate and access them by: