This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

Understanding Class Constructors

Given that objects have state (represented by the values of an object’s member variables), the object

user will typically want to assign relevant values to the object’s field data before use. Currently, the

Car type demands that the petName and currSpeed fields be assigned on a field-by-field basis. For the

current example, this is not too problematic, given that we have only two public data points. How-

ever, it is not uncommon for a class to have dozens of fields to contend with. Clearly, it would be

undesirable to author 20 initialization statements to set 20 points of data.

Thankfully, C# supports the use of 

class constructors, which allow the state of an object to be

established at the time of creation. A constructor is a special method of a class that is called indi-

rectly when creating an object using the new keyword. However, unlike a “normal” method,

constructors never have a return value (not even void) and are always named identically to the

class they are constructing.