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.
Can US citizen adopt child of 21yrs. or older child? Thanks Generally speaking, adult adoption is legal in the US, for particulars, you would need to research your state's laws.Some states require that there be a certain age difference between the adoptee and the adoptive parent, but there is no reason why someone can't adopt an adult. L. 10-22-2003, 07:59 PM #6.an US citizen adopt child of 21yrs. or older child? Thanks Generally speaking, adult adoption is legal in the US, for particulars, you would need to research your state's laws.