What are the different data types in Apex in salesforce?

Hi Piyush,

Different data types available in Apex are,

1.Basic data type (Integer/Boolean/String)
2.Boolean
3.Date/Datetime/Time
4.ID (18 bits and 15 bits, can be converted to and from String)
5.Integer/Long/Double/Decimal
6.String
7.Blob
8.Object
9.Enum (enumeration type)
10.sObjects ( sObjects/Account/Position_c, etc. )
11.Collection (list, set, map, etc.)
12.User-defined and system custom objects
13.Null