How many String objects are created by the following declaration? String[] labels = new String[20];

2. count_fred_and_ted Given a list of strings called names , count up how many of those names are either "fred" or "ted", and return the count. Sample calls should look like: >>> count_fred_and_ted(["sarah", "bimmy", "fred", "eliza", "ted", "ted"]) 3 >> count_fred_and_ted(["sarah", "bimmy", "bimmy", "bimmy", "bimmy"]) >>> count_fred_and_ted(["fred", "ted", "fred", "ted"]) 4 >>> count_fred_and_ted([])

•is Valid Phone Number(): ReturnsTrue if the provided phone number (represented as a string) is cor-rectly formatted, otherwiseFalse. To be considered correctly formatted, phone numbers must bewritten as###-###-####, where#is a digit between 0 and 9 .•validatePhoneBook(): A phone book is a list where each entry is a phone book record (represented asa dictionary; see below for more details). This function checks each phone book record in the phonebook for correctly formatted phone numbers.A phone book record is a dictionary which initially has two keys: the key"name"mapped to thecontact’s name (string) and the key"phone number"mapped to that contact’s phone number (alsoa string).validatePhoneBook()adds a new key"valid"to the record with the valueTrueif the phonenumber is formatted correctly, otherwiseFalse.   1. Write white-box and black-box tests for the function is ValidPhoneNumber(). You should do this with-out Python, either on paper, or in a simple document. Don’t worry about…

L = [[[1,2], [3,4,5]], "friday", {'x': "halloween", 'y':7, 'z’:77}, {10, 11, 12}] Show the commands for the following operations on L a) retrieve 'w' inside string "halloween" b) retrieve 4 c) retrieve 'y' in string "friday" d) change the value of key 'z' to 100 e) place 'A' inside [3, 4, 5] f) place 'B' inside {10, 11, 12}