Prevent Contact Creation Without Parent Account

This trigger enforces data integrity by preventing the creation of Contact records without a parent Account. Users receive an error message when attempting to save such Contacts.

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Solution:
public class ContactTriggerHandler {
            public static void handleBeforeInsert (List<<Contact> newRecords) {
                      for (Contact conRecord : newRecords) {
                            if (conRecord.AccountId == null) {
                               //throw an error.
                                    conRecord.addError(‘Parent Information is mandatory for contact creation’);
                            }
                 }
        }
}