Converting list of string to list of lowercase in Apex

This post explains how to convert a list of strings to a list of Lowercase .

To convert a list of strings to a list of lowercase , you just need to run a loop over the list and use the "toLowerCase()"  method.

public class TolowerCase {

    public static void Cases()

    {

        List<String> Values = new List<String>{'SALES', 'MARKETING', 'SERVICE'};

            

            for(String s : Values)

        {

                s.toLowerCase();

                System.debug('OrignalWord------>>'+s);

                System.debug('LowerCaseWord------>>' + s.toLowerCase());

              

            }

    }

}

Result :-  

Easy right..........!!

Thanks,
Lovesalesforceyes