When passing an array as an actual parameter in a method, what is required?

When passing an array as an actual parameter in a method, using only the array's name is correct because it effectively references the entire array. In Java, when you pass an array, you are not passing the whole array itself but rather a reference to it. This means that any changes made to the array within the method will affect the original array, as both the parameter in the method and the original array reference the same memory location.

There is no need to pass the entire array structure or create an explicit copy, which simplifies the process of working with arrays in methods. Making a copy of the array is not only unnecessary for passing it as a parameter, but it would also introduce additional overhead, consuming more memory and processing time. Hence, just providing the name suffices to let the method access the array's contents directly.