Along with a ton of other things, of course. Java introduced the concept of "single abstract method" types to do function pointer-like things. Lambdas can be used as SAM types instances.

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

Dynamic arrays can be resized via a method if the method's parameter is a reference array and an output parameter. See ARRAY for more information on reference arrays.