4. Show what is written by the following segments of code, given that element1, element 2 , and element 3 are int variables, and q is an object that fits the abstract description of a queue as given in Section 4.2, "The Queue Interface." Assume you can store and retrieve values of type int in q. a. element 1=1; element 2=0; element 3=4; q. enqueue (element 2) ; q. enqueue (element1) ; q. enqueue (element 1+ element3) ; element 2=q dequeue () ; q. enqueue (element 3 * element 3 ) ; q. enqueue (element 2 ) ; q. enqueue (3)