What is a constructor in C# and why would you use it?

A constructor is a special method in a class. It is called immediately after the new object is created based on the class (remember, the class is a blueprint based on which an object can be created). The purpose of a constructor is to initialize values of the newly constructed object to predefined values. The constructor must always have the same name as the class. There can be multiple constructors in the class with the same name, but each constructor needs to have different number of parameters or the parameters must be of different type.