2- Given a class named student, which of the following is a valid constructor declaration for the class? A. int student ()(} B. student (){ } C. private final student () { } D. static void student(){ }
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- iven 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 ( ) { }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) {Create a class car with make, model, year, OwnerName, RegisNo, Insurers as private fields. Create the following void methods getcarInfo, storeCarData and processcarInfo as public members of the class. Create another derived class Commercial with car as it base class. The commercial class should have RegFees, Station,Route as it’s private member fields and CommeCar as it public method. At program execution stage the following methods are called in the main function getcarInfo, storeCarData of the base class and CommeCar. Using code snippets write a C++ program to solve the problem above. NB: All functions do not need function definitions but provide the function prototypes
- Which of the statements are true about the class Magazine? 01: class Magazine { 02: public: 03: Magazine (int maxSize = 100); 04: void add (Article a); 05: int numArticles() const; 06: Article getArticle (int i); 07: private: 08: Article* array; 09: int numberOfArticles; 10: }; The compiler will provide a destructor for this class. It has a default constructor It is const-correct. It has a copy constructor The programmer should provide an assignment operatorIndicate whether the statement is true or false. 13. The non-static methods of a class are called instance method. 14. A constructor has no type and is therefore a void method. 15. A class can have only two constructors. 16. In shallow copying, each reference variable refers to its own object. 21. The method finalize automatically executes when the class objects goes out of scope. 22. A mutator method of a class changes the values of data members of the class. 23. In java, the reference this is used to refer to only the methods, not the instance variables of a class. 24. Classes that are defined within other classes are called inside classes. 25. Modifiers are used to alter the behavior of the class 26. A constructor has the same name as the class. 27. Constructors are called like any other method. 28. You can perform some arithmetic operations on class objects.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.a. Write a class named Student has the following data fields and methods: private int Id private double GPA Constructor to create a Student object with specified name, address, Id and GPA. Accessors and mutators methods for Id and GPA data fields (get and set). A method toString () that returns Id, name and address and GPA. b. Write a test program that creates a Student object with Id:123 Name: Ahmed address: Muscat grade: 2.55 & then call toString () method to display Id, name and address and GPA.Define a new "Exam" class that manages the exam name (string) and its score (integer). For example, an exam can have - "Midterm Exam", 100 - "Final Exam", 50 The class must not provide the default constructor. It must require the exam name and score in order to initialize the Exam object. The class must provide only the following methods (no more and no less): - isPerfect method that returns true if the score is exactly 100 and false otherwise. - isPassing method that returns true if the score is equal or greater than 70 and false otherwise. - toString method must return all the exam information including the result of the exam as a string in the following format: EXAM(<name>) SCORE(<score>) RESULT(Pass/Fail) such asEXAM(Midterm Exam) SCORE(100) RESULT(Pass) EXAM(Final Exam) SCORE(50) RESULT(Fail) "Pass" means the score is greater or equal 70. "Fail" is whenever the score is below 70. - isGreater method that compares with another Exam object and return true if the score…
- 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.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…H1. Q2 Create a class Account class with balance as a data member. Create two constructors (no argument, and two arguments) and methods to withdraw and deposit balance. Subject: OOP in JAVA Please give typed answer