Can class fields be protected from modification?

Problem (Online Address Book): Using classes, design an online address book to keep track of the names, addresses, phone numbers, and dates of birth of family members, close friends, and certain business associates. Define a class addressType that can store a street address, city, state, and ZIP code. Use the appropriate functions to print and store the address. Also, use constructors to automatically initialize the member variables. Define a class extPersonType using the class personType with following members and methods: firstname, lastname, and accessors and mutators, print to display, and constructors.  Define a class dateType for month, day and year as members with its accessors, mutators, and constructors) Design a class addressType. Add a member variable to this class to classify the person as a family member, friend, or business associate. Also, add a member variable to store the phone number. Add (or override) the functions to print and store the appropriate information.…

2. Create one user object that invokes the default constructor.

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Differentiate between static and instance class members. Explain with proper example when you should make members static?

Nutritional information (classes/constructors) PYTHON ONLY Complete the FoodItem class by adding a constructor to initialize a food item. The constructor should initialize the name (a string) to "None" and all other instance attributes to 0.0 by default. If the constructor is called with a food name, grams of fat, grams of carbohydrates, and grams of protein, the constructor should assign each instance attribute with the appropriate parameter value. The given program accepts as input a food item name, fat, carbs, and protein and the number of servings. The program creates a food item using the constructor parameters' default values and a food item using the input values. The program outputs the nutritional information and calories per serving for both food items. Ex: If the input is: M&M's10.034.02.01.0   where M&M's is the food name, 10.0 is the grams of fat, 34.0 is the grams of carbohydrates, 2.0 is the grams of protein, and 1.0 is the number of servings, the output is:…

What are the three tasks you must do for classes that include member variables that are pointers?

C++ Programing NOTE: The important method has been ATTRIBUTES given to you. userld:int //generates unique id from 10001 upwards INSTRUCTION 1 username:string firstname:string lastname:string dob:string The program should generate unique userld whenever new object is created. Notice that idGenerator is static variable, so assign the current value of idGenerator to userld, so that each user will have unique user id (Starting from 10001). age: int idGenerator: static int; totalUsers : static int МЕТHODS User() User(string, string, string, int) User(const User&) "User() Then increment idGenerator by 1. INSTRUCTION 2 The totalusers is also a static variable. This should keep track of the total users in the class. With the Above UML for CLASS USER, answer the following questions Complete or Create the default constructor method. a. The default constructor should accept just the firstname, lastname, dob (date of birth) and age from the keyboard. wwww w b. Write a setter method that sets the…