Usage of default (type):
Found an interesting use of the default keyword in .Net.
default(type) would return the default value for the datatype specified as parameter.
This is nothing but a wrapper around the default values of various types which was intended to be used for Generic classes.
T obj = default(T);
Where T can be any datatype even DataTime and GUID which need to be not NULL.
Using ‘default’ here makes sure the correct initialization takes place.