Which of the following is a prototype of default constructor for class Car? public Car( ); void Car( ); int Car( ); public Car(int type);
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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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- Analysis 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; } } What is the access specifier of the result in the above code? a. No access specifier b. private c. float d. public e. voidWrite the declaration of a class Cylinder containing: A member variable height of type double. A member variable radius of type double. setHeight - a mutator function for the height member variable. setRudius - a mutator function for the radius member variable. getHeight - an accessor function for the height member variable. getRadius - an accessor function for the radius member variable. getVolume - a function that returns the volume of the Cylinder. getSurface - a function that returns the surface of the Cylinder. . . Notes: - Search online for the cylinder's volume and surface formulas - Consider 3.14 as the value of π (pi) - The main function the instructor will be using to test your Cylinder class is: } int main() { Cylinder tank; double CylinderHeight; double CylinderRadius; cout > CylinderHeight; cout > CylinderRadius; tank.setHeight (CylinderHeight); tank.setRadius (CylinderRadius); cout << "The volume is: " <<< tank.getVolume () <<<< endl; cout << "The surface is: " <<…This question involves the design of a class that will be used to produce practice problems. The following StudyPracticeinterface represents practice problems that can be used to study some subject. public interface StudyPractice. { /**Returns the current practive problem */ String getProblem(); /** Changes to the next practice problem */ void nextProblem(); } The MultPractice class is a StudyPracticethat produces multiplication practice problems. A MultPractice object is constructed with two integer values: first integer and initial second integer. The first integer is a value that remains constant and is used as the first integer in every practice problem. The initial second integer is used as the starting value for the second integer in the practice problems. This second value is incremented for each additional practice problem that is produced by the class. For example, a MultPractice object created with the call new MultPractice (7, 3)would be used to create the practice…
- Question 3 What problems might the following nested class declaration have? class Ribs { private: class Sauce { int soy; | int sugar; public: Sauce(int s1, int s2): soy(s1), sugar(s2) { } }; };Question 2: Consider the following code and write the complete definition of the mentioned class accordingto the code written in the main program? Moreover, write additional code in the main program to displaydetails for the employee with the highest salary.class {private:public:};int main ( ) {Employee e1(“E1000”, “AHMAD”, “100000”); //ecode, ename, esalaryEmployee e2 (e1);e1.display( );}Question 1: Consider the following declarations: class xClass public: void func(); void print(); private: int u; double w; }; and assume that the following statement is in a user program: xClass x; a. How many members does class xClass have? b. How many private members does class xClass have? d. Write the definition of the member function func so that u is set to 10 and w is set to 15.3. e. Write the definition of the member function print that prinuus 'he contents of u and w. g. Write a C++ statement that prints the values of the member v.riables of the object x. h. Write a C++ statement that declares an object t of type xClass and initializes the member variables of t to 20 and 35.0, respectively. Question 2: Explain why you would need both public and private members in a class.
- QUESTION 1 Static fields in a class can be referenced as a field of any instance of the class. can be used inside instance methods. can only be used in class static methods. O can only be set in a static constructor.Part (1) Create a class called HOUSE that has these private instance variables: an owner “string”, an area “double” and a pricePerMeter “double”. The class has the following methods: - A constructor that takes owner, price and area. Theconstructor sets the class variables to these values and in case the owner is empty string, set its instance variable to “unknown”. - A mutator method (set) and an accessor method (get) for the owner variable. - A method getPrice that returns the total price of the house. The total price of the house is computed by multiplying the area by the price per meter. - A method print that prints the owner, area and price per meter. Part (2)Write a Java application that asks the user to enter the owner, area and price per meter of the house. Create an object from House class you defined in Part (1) and use it to display the house information and the total price of the house.constructor Bill_Details(String) is already defined in class Bill_Details plz how can i fix this problem . in this program i need to get a constructer from each class
- Shows the declaration by writing a statement in the class world to overload the operator == as amember function.Can we use a default constructor of a class even if an explicit constructor is defined?Write a program that does the following: 1-Define two classes Teacher and Department. Each Teacher has a department object as follow: [3 points] class Department{ int dno; char *name; //add data member to count number of departments automatically public: //add required methods here //define print function that prints all details of department. Note that print function is NOT function member of class Department }; class Teacher{ const int SSN; char *name; Department d; public: //add all required methods //define print function that prints all details of Teacher. Note that print function is NOT function member of class Teacher } 2-inside main do the following: a) create array of 5 Teachers. add all required details for each object inside a loop.(do NOT use cin>>) b)use print function for department and use print function for student. c)define and use a function FindTeachers that takes the array of Teachers and name of department. Then the function returns a list of all Teachers…