ObjectPascal Of Keyword Linking keyword used in many places

1 Case variable Of ...   2 type name = Set   Of range;   3 type name = Class Of class type;   4 var  name : Array Of type;   5 var  name : File  Of type;

Description The Of keyword is used as a link in a number of Delphi declarations. Related commands Array A data type holding indexable collections of data Case A mechanism for acting upon different values of an Ordinal Class Starts the declaration of a type of object class File Defines a typed or untyped file Set Defines a set of up to 255 distinct values		Example code : A simple example var   letters : set Of 'a'..'z'; begin   // Set all of the set values on   letters := ['a'..'z'];   // See if a letter is lower case   if 'g' in letters   then WriteLn('g is a lower case letter')   else WriteLn('g is not a lower case letter'); end; Show full unit code    g is a lower case letter