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AnjaneyluAnjaneylu 

what does this mean in lists

hi guys,,
i am new to salesforce, what is the fuction of this statement ..
please explain me ..
List<List<Set<Integer>>> my_list_2 = new List<List<Set<Integer>>>();
Thanking you in advance..
 
Best Answer chosen by Anjaneylu
BDatlaBDatla
Hi Anji,

List<List<Set<Integer>>> my_list_2 = new List<List<Set<Integer>>>();

Set<Integer>  : set of integers
List<Set<Integer>> : set of integers in a list
List<List<Set<Integer>>> : List contains  set of integers in a list.

You can use set<Integers>  instead of List<List<Set<Integer>>> as per your statement.

Regards,
BDatla
 

All Answers

sandeep sankhlasandeep sankhla
Hi Anji,

my_list_2 is a list which will store a list and that list will also store a set of integer values...

 
Shashikant SharmaShashikant Sharma
That is a List of List of Set of Integer so an items would . It is going 3 level down for the items.

 
BDatlaBDatla
Hi Anji,

List<List<Set<Integer>>> my_list_2 = new List<List<Set<Integer>>>();

Set<Integer>  : set of integers
List<Set<Integer>> : set of integers in a list
List<List<Set<Integer>>> : List contains  set of integers in a list.

You can use set<Integers>  instead of List<List<Set<Integer>>> as per your statement.

Regards,
BDatla
 
This was selected as the best answer
padmapadma
Hi anji,

A list is an ordered collection of elements that are distinguished by their indices. List elements can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex type.

A set is an unordered collection of elements that do not contain any duplicates. Set elements can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types
as per your example:
List<List<Set<Integer>>> my_list_2 = new List<List<Set<Integer>>>();

Set<Integer>  : set  of integers
List<Set<Integer>> : set of integers in a list
List<List<Set<Integer>>> : List contains  set of integers in a list.
List<List<Set<Integer>>> my_list_2 = new List<List<Set<Integer>>>();// define new  List contains  set of integers in a list.
. Thanks,
 
AnjaneyluAnjaneylu
Thanking  you BDatla and sandep sankhla...