Java arrays - a brief tutorial 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.

In this second tutorial in the data structures and algorithms series, you will learn how arrays are understood and used in Java programming. I’ll start with the concept of an array and how ...

Right-click the Java file you want to edit and select "Open With." Click your Java compiler to open the code in the editor. Add the "Random" class library to the top of the source code file.

In Java, some array types are covariant and/or contravariant. In the case of covariance, this means that if T is compatible to U, then T[] is also compatible to U[].

The next time you need to examine command line arguments and things get a little complex, whip out your trusty open source Java toolkit, and use Command Line Interface (CLI).