Classes, Structs, and Objects—Creating Objects

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Classes, Structs, and Objects Class Definitions § Value Type Definitions § Boxing and Unboxing § System.Object § Creating Objects § new Keyword Field Initialization Static (Class) Constructor Instance Constructor Destroying Objects § Disposable Objects § Method Parameter Types § Method Overloading Inheritance, Virtual Methods § Inherit, Contain, Delegate § Summary

© 2006 Weldon W. Nash, III

Creating Objects

Object creation is a topic that looks simple on the surface, but in reality is relatively complex under the hood. You need to be intimately familiar with what operations take place during creation of a new object instance or value instance in order to write constructor code effectively and use field initializers effectively. Also, in the CLR, not only do object instances have constructors, but so do the types they’re based on. By that, I mean that even the struct and the class types have a constructor, which is represented by a static constructor definition. This capability doesn’t exist in languages such as native C++, so it may be a new concept to you. Constructors allow you to get work done at the point the type is loaded and initialized into the application domain.