The methods and variables defined within a class are called O methods of the class members of the class modifiers of the class values of the class
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- Given the following code for a class named Employee, complete the following constructor public class Employee ( private int employeeID; private int SSN; public Emplyee(int employeeID, int SSN) {Please Solve the Question in C++ as quickly as you can in 40 minutes. And do the same as asked in the question. Don't use extra things, please. Write a class named Grade that has the following member variables and functions. Variables : protected: double score, char letter Functions: Required Constructors Getscore() // it will return score Getgrade() // it will assign the grades to letter variable and returns it. If score> 89 then A, > 79 then B, ..>69 then C, > 59 then D, else F. Derive a class named PassFail publically from class Grade that has the following member variables and functions. Variables: private: MinPassing Functions: Required constructors Getgrade() // it will return “P” if score >=MinPassing else return “F” Derive a class named FinalExam publically from class PassFail that has the following member variables and functions. Variables : private :questions (total questions), missed(missed questions), points…Examine the following code and select the correct statements (choose all possibleoptions): class Bottle {Bottle() {}Bottle(WaterBottle w) {}}class WaterBottle extends Bottle {WaterBottle() { }WaterBottle(Bottle w) { } } a) The class Bottle defines two overloaded constructors.b) The class WaterBottle defines two overloaded constructors.c) The class compiles successfully—a base class can use reference variables of its derived class as method parameters.d) Bottle and WaterBottle cause syntax errors.e) The class compiles successfully - A derived class can use reference variables of its base class as method parameters.f) A base class can’t pass reference variables of its defined class, as method parameters in constructors.
- How many default constructors can a class have? a. A class cannot have a default constructor. b. only one c. as many as it needs d. one or more, but fewer than threeAnalysis the following class definition and answer the following question. class Student{ private int id, age; protected float mark; int getAge (int a){ return a ; } protected void setMark (float m){ mark = m; } float result(){ return mark / 2; } } Which is the member variable of the class? a. setMark b. getAge c. result d. private e. ageiven a class named student, which of the following is a valid constructor declaration for the class? Student (student s) { } Void student ( ) { } Static void student(){ }. Student student ( ) { }
- Question: Choose the correct one. Note: Give me all the answers without explanation. 1.It is an instance of the class Select one: a. Method b. Object c. Data member d. Constructor 2.The encapsulation concept means. Select one: a. The class has private constructors and methods b. The data members are public access c. The data members are private access d. you can't access the members of the class even from the class itself 3.char A[]="hahahah"; char* p=&A[0]; *p='na'; p="CII"; cout<<A; the output is. Select one: a. CIIhahahah b. hahahah c. aahahah d. nahahah 4.Let A is char array as follows: char A[]=”hahahah”; the length of A Select one: a. 32 characters b. 7 characters c. 28 characters d. 8 characters 5.class A{int x;}; class B:public A{int y;public: void add(){y=++x;}};to correct the error. Select one: a. We should use protected: in class A b. We should use private: in class A c. We should use protected: in class B d. We should use public: in class B…Given the following class, called NumberHolder, write some code that creates an instance of the class, initializes its two member variables, and then displays the value of each member variable. public class NumberHolder { public int anInt; public float aFloat; }Create a class named Employee which contains an employee name, available to the entire program (public), and an employee ID number and hourly pay rate, available only to the members of the Employee class (private). Also write a constructor (the __init__ member function) which accepts a pay rate and changes it to 7.25, if the value entered is less than that. Do not write any accessor or mutator methods for the class.
- 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. Your program should be able to handle a maximum of 500 entries. 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 (as defined in Example 10-10, Chapter 10), the class dateType (as designed in this chapters Programming Exercise 2), and the 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. Use constructors to automatically initialize the member variables. Define the class addressBookType using the previously defined classes. An object of the type addressBookType should be able to process a maximum of 500 entries. The program should perform the following operations: Load the data into the address book from a disk. Sort the address book by last name. Search for a person by last name. Print the address, phone number, and date of birth (if it exists) of a given person. Print the names of the people whose birthdays are in a given month. Print the names of all the people between two last names. Depending on the users request, print the names of all family members, friends, or business associates.Chapter 10 defined the class circleType to implement the basic properties of a circle. (Add the function print to this class to output the radius, area, and circumference of a circle.) Now every cylinder has a base and height, where the base is a circle. Design a class cylinderType that can capture the properties of a cylinder and perform the usual operations on the cylinder. Derive this class from the class circleType designed in Chapter 10. Some of the operations that can be performed on a cylinder are as follows: calculate and print the volume, calculate and print the surface area, set the height, set the radius of the base, and set the center of the base. Also, write a program to test various operations on a cylinder.-Design a class named AutomobileLoan that holds a loan number, make and model of automobile, and balance. Include methods to set values for each data field and a method that displays all the loan information.
