What’s the difference between Java array length vs length ()? When you put round brackets at the end of a word in Java, it indicates that you are calling a method. Without round brackets, you are ...

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.

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.