Using the Java array length for size To determine the size of an array in your code, you need to use the Java array’s length property field. Just make sure the array is not null, and don’t confuse ...

In Java, once you set the Java array size it is fixed, and it can’t be changed. This puts Java in sharp contrast to other programming languages like JavaScript where arrays resize dynamically.

How to Assign Random Numbers to an Array in Java. Java has a "Random" class that lets you generate a random number you use to implement calculations in your Java source code.

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.