how to get values from map in salesforce

You can get the value from map if you use get method in Map. mapname.get (string) ==> will return all the fileds mapname.get (string).FieldName; ==> will return particular filed.

Full Answer

What is a map key in Salesforce?

Map keys and values can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types. Uniqueness of map keys of user-defined types is determined by the equals and hashCode methods, which you provide in your classes.

How to get the value of a string from a map?

You can get the value from map if you use get method in Map. mapname.get (string) ==> will return all the fileds mapname.get (string).FieldName; ==> will return particular filed.

How many types of collections are there in Salesforce?

“ Collections are same like an array ” - We have 3 types of collections in Salesforce, and they are: List. Set. Map. How to create a Map and save information about Mobile Brand Name and Price?

How to get the account record from the map?

You have to pass the id of account in the map to get the record. For Example: When you pass account id in get method this will return the account record and then your corresponding field. Please mark it best if this helps you.

How do I find the map value in Salesforce?

Apex Map In SalesForceLog into your Salesforce account and click the "Developer Console".The general syntax for Apex Map is, ... Next, we can add some predefined important methods like put(key, value), get(key), keySet(), values(), size(), clone(), and clear() to the Apex Map.More items...•

What is values () in map in Salesforce?

size() Returns the number of key-value pairs in the map. values() This method returns a list which contains all the values in the map.

How do I iterate map values in Apex?

One method in particular can be used to loop through a map in Apex, this method is keySet(). The keyset method returns all of the keys in the map and you can access the value associated with the key inside a loop.

How do you find the value of the map?

Generally, To get all keys and values from the map, you have to follow the sequence in the following order:Convert Hashmap to MapSet to get set of entries in Map with entryset() method.: Set st = map. ... Get the iterator of this set: Iterator it = st. ... Get Map. ... use getKey() and getValue() methods of the Map.

How do I use GET method in Salesforce map?

How to use Map methods in SalesforceCreating a Map: Map variablename=new Map(); ... Different Methods in Map:put(key, value): It returns the value with given key in the map. ... clear(): It removes all the key-value mapping pairs from the map.get(key): ... keySet(): ... values(): ... size():More items...•

How do I access map elements in Apex?

To access elements in a map, use the Map methods provided by Apex. This example creates a map of integer keys and string values. It adds two entries, checks for the existence of the first key, retrieves the value for the second entry, and finally gets the set of all keys.

How do I convert a map value to a list?

Java program to convert the contents of a Map to listCreate a Map object.Using the put() method insert elements to it as key, value pairs.Create an ArrayList of integer type to hold the keys of the map. ... Create an ArrayList of String type to hold the values of the map. ... Print the contents of both lists.

How do you get the map value from the lightning component?

Iterate Map values in Lightning ComponentApex Controller: Create below apex controller to get the Map value.Child Component: Create below Child. ... Child Component JS Controller: Create below JavaScript Controller for above Child. ... Parent Component: Create below Parent. ... Parent Component: ... Lightning Test App:Output:

How do I iterate map keySet in Apex?

“how to iterate map in apex salesforce” Code Answerfor(Id id: mapname. keyset()){Set stringset= mapname. get(id);for(String a: stringset){sendMail(a);}

How do you get all the keys on a map?

Starting from Java 8, forEach is easiest and most convenient way to iterate over all keys and values in a map.map. forEach((k,v) -> { System. ... // iterate over and get keys and values for (Map. Entry entry : map. ... Set keys = map. ... Collection values = map.

How do you find the value of an object in a string map?

Get Elements From a Java Map Map map = new HashMap(); map. put("key1", "value 1"); String element1 = (String) map. get("key1"); Notice that the get() method returns a Java Object , so we have to cast it to a String (because we know the value is a String).

What are maps that link a key to a value?

Interface Map An object that maps keys to values. A map cannot contain duplicate keys; each key can map to at most one value. This interface takes the place of the Dictionary class, which was a totally abstract class rather than an interface.

Salesforce Collection of Map Module

If you would like to become a Salesforce certified professional, then visit Mindmajix - A Global online training platform: “ Salesforce Certification Training ” Course. This course will help you to achieve excellence in this domain.

Collection-map with a sample program

Scenario: Add mobile brands with price lists and process them with step-by-step execution with collection functions. The below mentioned are 6 individual programs for adding mobile brand with price list via List.