21. Kinetoplastida is divided into two subclasses -Metakinetoplastina and Prokinetoplastina. 22. Later on, subclasses change the abstract methods to implement real actions. 23. The standard view now is that it resides within the subclass Heterodonta. 24. However, superclass constructors should be called before subclass constructors. 25. The psychology field is considering creating several subclasses within PDD-NOS. 26. This implies that lenticular galaxies are a distinct morphological subclass of galaxies. 27. The two subclasses only differed in respect of their types of superheater. 28. Suppose a program contains several subclasses , HouseCat and Lion. 29. The subclass called inherits every method that could be in the class. 30. Thus all classes in Java are subclasses of Object class.
