The answer for 20 is c and for 15 is a but can someone explain to me how to get them without using java?

Suppose we define a constructor with 3 parameters for box3d and a public method test() as follows box3d(int k int a, int b){public void test(box3d B){width=a; if (this.width arrayList = new ArrayList (); int i = 0; arrayList.add(b1); arrayList.add(d2); arrayList.add(b2); arrayList.add(d1); for (i = 0; i