New Picture
Here a picture that shows the situation just after
the second method call:
operate.print( ar2 );
x of the method
now refers to the second array.
By using parameters with methods you can use the same method with different data. This makes the method into a useful tool that can be used in many situations.
Note: In this picture, the arrow connected to ar2
and the arrow connected to x look quite different,
although they point to the same object.
However, when the program is running, the reference in
x is identical to the reference in
ar2.
Both contain an identical reference to the array object.
