A sub class has an 'is a' relationship with its superclass. This means that a sub class is a special kind of its super class. When we talk in terms of objects, a sub class object can also be treated as a super class object. And hence, we can assign the reference of a sub class object to a super class variable type. However, the reverse is not true. A reference of a super class object may not be assigned to a sub class variable. The following statements illustrate this concept by creating a Student object and assigning it to a Person variable. However, when we try to assign the reference of a Person object to a Student variable, we get a compilation error.
Innovators - Venturesome; innovators are the first to adopt a new product. They are willing to pay a high price to be the first to have something new. Early adopters - Young and restless; early adopters find a practical use for the new product and communicate the value of the new product to their followers. Early majority - Value shoppers; the early majority do not adopt new products until they are sure the new product will have value for them.
Those of us in the animal sheltering and rescue world usually recommend early-age spay/neuter at 8 weeks of age, or as soon as possible after that. Promoting early-age spay neuter is part of the social responsibility we feel to do all we can to reduce 5,000 dogs and cats euthanized in animal shelters every day.We see the number of puppies and kittens barely 6 months old that come to shelters, suffering from such an early pregnancy.arly-age spay/neuter is endorsed by the the American Veterinary Medical Association (AVMA), the American Animal Hospital Association (AAHA), the Association of Shelter Veterinarians (ASV), and the Canadian Veterinary Medical Association (CVMA) among others.