Difference between string and String

Good morning friends,
This is a common question which comes to programmers' minds.
Difference between string and String, bool and Bool etc.
The answer is quite simple; string is an alias (another name) for String (here String is System.String)
similarly, bool is alias and Bool is CLR type.
Following are some more examples:

short	System.Int16
ushort	System.UInt16
int	System.Int32
uint	System.UInt32
long	System.Int64
ulong	System.UInt64

They can be used interchangeably, but there is only one circumstance where you need to uses aliases and not the CLR type. While explicitly specifying the datatype for enum.
e.g., public enum Color : int


here Int32 would be invalid to use.


Hope this is helpful.