Using the new keyword like this permanently sets the Java array size. However, all elements are initially set to null, or to zero if it is an array of primitive types. Another way to size Java arrays ...

The Java array’s length property does not return the number of non-null elements in the array. The Java array length represents the array’s total potential size, not just the number of elements that ...

An array is a container object that holds a finite number of values of a specific type. The number of elements the array ... arrays have to respect the usual Java variable naming conventions.