Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.

Simple Object.toString() on arrays is seldom what we want as it only prints the String representation of the array itself and not of its contents. Arrays.toString(Object[]) will print a String ...

In Java an array is a way of storing multiple items of the same type. In this quick tutorial we introduce you to the very basics.