What is the output(static field)? : Questions « Modifiers « SCJP

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class MyClass {
   static int referenceCount = 0;

  public MyClass() {
    referenceCount++;
  }

  protected void fly() {
    ;
  }

  static int getRefCount() {
    return referenceCount;
  }
}

class MySubclass extends MyClass {
  MySubclass() {
    referenceCount++;
  }

}

public class MainClass {
  public static void main(String args[]) {
    System.out.print("Before: " + MyClass.referenceCount);
    MySubclass florence = new MySubclass();
    System.out.println(" After: " + MyClass.referenceCount);
    florence.fly();
  }
}