Compiled Java

In fairness, in many cases an inner class, anonymous or not, can be used. The inner class has access to the containing class's scope, and can thus be passed to wherever you want and the methods in that interface will then be able to modify the members of the containing class. This is pretty nice technique as it gets you something that feels like closures.

In a rare occasion someone might use a kludge like pass a new int[1] { value } so that the array's first element can be adjusted by the called code. Tricks like 1-element arrays are also sometimes used in Python, to circumvent Python's way of determining the scope of a variable from a first assignment in a block.