Fill in the main) method, replacing the //FIXME comment in its body, so that it creates an object of class Point whose fields contain the values x 20 and y 16 and then changes the value of x to 10 and y to 97. [10 marks] Question 2 (Generics, 15 marks) Given the following class definitions interface A . . .h interface B f... interface C extends A, B .. . class X implements A ..) class Y extends X implements B class Z implements B... class P f... class Q extends PKE class R extends Q .. say whether each of the following variable declarations is valid or invalid, and give a brief explanation of your answer: (a) Q foo; (b) PKC> foo (c) R foo; 5 marks] [5 marks) 5 marks Page 2 of 12