Answer the following questions based on the accompanying sequence diagram. a. What class contains a method named ww? b. What class contains a method named xx? c. During the sequence, does the object...

accompanying sequence diagram.

a. What class contains a method named ww?

b. What class contains a method named xx?

c. During the sequence, does the object of

“type” Z ever communicate directly with

the object of “type” Y?