Array Class (Java 17) length - returns the size of an array in terms of its total capacity to hold elements Code example to find the Java array size. Here is a simple example of how to find the length ...

If you need to use arrays in Java that can be resized, then you might opt for the ArrayList. An ArrayList is not as fast, but it will give you more flexibility at runtime.

You use this library to generate a random number and insert the number into an array variable index. You can add one or several random numbers into your array variables, but Java does not ...