how to get value from set in salesforce

Set<Integer> values = new Set<Integer> (); values.add (5); values.add (10); System.assert (values.contains (10)); Since they have no order, it makes no sense to request a value by ordinal. You can convert a set into a list, however, simply by using the new list constructor: List<Integer> valueList = new List<Integer> (values);

Full Answer

What is set in Salesforce?

Set elements can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types. Set methods are all instance methods, that is, they all operate on a particular instance of a Set.

How do you create a value management strategy for Salesforce?

Explicitly define the value you expect from your Salesforce investments, make value management central to strategic governance, and secure executive sponsor support for a broader value management program across your organization Define metrics that connect business value to the actions and decisions taken by stakeholders across your organization

How do set methods work in Salesforce?

The Set methods work on a set, that is, an unordered collection of elements that was initialized using the set keyword. Set elements can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types.

What is the difference between keys and values in Salesforce?

Keys can be any primitive data type, while values can be a primitive, sObject, collection type or an Apex object. Please look into below example which will give you an idea about List, Set and Map. Please let me know if this helps you. You need to sign in to do that.

How do I get the first value from a Set in Salesforce?

Integer x = xList. get(0);

How do I convert a Set to a string in Salesforce?

Converting Set into String String setString = string. valueof(setdata). replace('{', ”).

What is Set ID in Salesforce?

In apex, the Id is a primitive data type that maintains the data integrity of the data type by only allowing only Ids(or Strings with Id patterns). If you would like to test it out, put the following into anonymous apex and execute: Id errorId = '001aaaaaaaaaaaa';

Can we use Set in SOQL query?

Yes we can. Your code should work.

What is string valueOf in Salesforce?

valueOf(datetimeToConvert) Returns a String that represents the specified Datetime in the standard “yyyy-MM-dd HH:mm:ss” format for the local time zone.

How do I assign a Set to a list in Salesforce?

The simplest way to convert List to Set in Salesforce is given below: List tempList = new List(); Set tempSet = new Set(); tempList.

How do I use a Set in Salesforce?

How to use Set in SalesforceSyntax:Creating a set: Set variable name=new Set(); ... add(SetElement): It inserts an element into the Set. ... addAll(fromlist|fromset): It inserts list of elements or set of elements into the set.remove(Element): ... removeAll(List|Set): ... contains(Element): ... size():More items...•

Why we use Set in Salesforce?

Set: A set is an unordered collection of primitives or sObjects that do not contain any duplicate elements. So, use set if you want to make sure that your collection should not contain Duplicates.

What is difference between Set and list in Salesforce?

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 types. Whereas, Set is an unordered collection of elements that do not contain any duplicates.

What is get Set in Apex?

Setter method : This will take the value from the visualforce page and stores to the Apex variable name. getter method : This method will return a value to a visualforce page whenever a name variable is called.

Can we convert list to Set in Salesforce?

Converting from a List to Set, can be done using the set's constructor. List lStrings = new List{ 'a' , 'b' , 'c' , 'd' , 'e' }; Set sStrings = new Set(lStrings); Converting from a Set to a List, can be done using the List constructor.

How do I query Sobject in Salesforce?

If you have the sobject name in a string, e,g, 'sobjname', you can then query back the record via something like: String queryStr='select id from ' + sobjname; List = Database. query(queryStr);

addAll (fromList)

Adds all of the elements in the specified list to the set if they are not already present.

addAll (fromSet)

Adds all of the elements in the specified set to the set that calls the method if they are not already present.

containsAll (listToCompare)

Returns true if the set contains all of the elements in the specified list. The list must be of the same type as the set that calls the method.

containsAll (setToCompare)

Returns true if the set contains all of the elements in the specified set. The specified set must be of the same type as the original set that calls the method.

equals (set2)

Compares this set with the specified set and returns true if both sets are equal; otherwise, returns false.

removeAll (listOfElementsToRemove)

Removes the elements in the specified list from the set if they are present.

removeAll (setOfElementsToRemove)

Removes the elements in the specified set from the original set if they are present.

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