Method Changing an Element
There is only one array, and the method has a reference to it. The method is able to change the elements of the array, as the picture shows.
The difference between the
first program and this example program
is that arrays are objects.
When a method is called with an object reference
(like value),
the method gets a reference to the object and can change the
object (if the object allows changes.)
Some objects do not allow any changes, such as String objects. So a method can't change them even though it has a direct reference to the object.
