Java OCA OCP Practice Question 3110

class MyClass<T> {
        private static int count = 0;
        public MyClass() {
               count++;//ww  w  . java2s  . c  o m
        }
        static int getCount() {
               return count;
        }
}

public class Main {
        public static void main(String []args) {
               MyClass<Double> doubleCounter = new MyClass<Double>();
               MyClass<Integer> intCounter = null;
               MyClass rawCounter = new MyClass();                     // RAW
               System.out.println("MyClass<Double> counter is "
                      + doubleCounter.getCount());
               System.out.println("MyClass<Integer> counter is " + intCounter.getCount());
               System.out.println("MyClass counter is " + rawCounter.getCount());
        }
}

a) This program will result in a compiler error in the line marked with comment RAW.
b) When executed, this program will print
     MyClass<Double> counter is 1
     MyClass<Integer> counter is 0
     MyClass counter is 1/*from w  w  w.  ja  v  a  2s  .  co  m*/
c) When executed, this program will print
     MyClass<Double> counter is 1
     MyClass<Integer> counter is 1
     MyClass counter is 1

d) When executed, this program will print
     MyClass<Double> counter is 2
     MyClass<Integer> counter is 0
     MyClass counter is 2
e) When executed, this program will print
     MyClass<Double> counter is 2
     MyClass<Integer> counter is 2
     MyClass counter is 2