Nested Lists In Apex
Nested Lists in Apex can be multidimensional also:
1. 2-Dimensional:
List<List<Datatype>> nestList = new List<List<Datatype>>();
2. 3-Dimensional:
List<List<List<Datatype>>> nestList = new List<List<List<Datatype>>>();
Note:
SOQL queries also return a list of records.
