Suppose Child is a class derived from Parent. To call a method in Parent from Child, we use: a) super b) private c) public d) protected
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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:
Suppose Child is a class derived from Parent. To call a method in Parent from Child, we use:
a) super
b) private
c) public
d) protected
Step by step
Solved in 4 steps with 1 images
- Assume an Animal class defines a public eat method and a Dog class derived fromthe Animal class defines a different public eat method. And assume thedeclaration:Animal[] animals = {new Animal(), new Dog("Collie", "brown")};Indicate which eat method is invoked by each of the following statements, and explainwhy.animals[0].eat();animals[1].eat();8- Create an instance of the following class and call its methods class Exam( int grade; public: void seta(int b) (gtade=b;) int petal) (return grade:) i;Define a class named Doctor whose objects are records for a clinic’s doctors. Derive this class from the class Person given in Listing 8.1. A Doctor record has the doctor’s name—defined in the class Person—a specialty as a string (for example Pediatrician, Obstetrician, General Practitioner, and so on), and an office-visit fee (use the type double). Give your class a reasonable complement of constructors and accessor methods, and an equals method as well. Write a driver program to test all yourmethods.
- class first { public: void setX(); void print() const; protected: int y; void setY(int a); private: int x; }; Suppose that class second is derived from class first using the statement: class second: private first Determine which members of class first are private, protected, and public in class second.Indicate 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.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…
- -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.2. Insert a function that prints a greeting, and execute it on the p1 object class Person: def __init__(self, name, age): self.name = name self.age = age ________________ ____________________________________Create a base class with two methods. In the first method, call thesecond method. Inherit a class and override the second method.Create an object of the derived class, upcast it to the base type, andcall the first method. Explain what happens.
- TOPIC: Inheritance In Python, modify the given code based on the given specifications below. Create another class, “Food.” For the Food class, the specifications are: The object will have the following attributes on initialization: weight (weight of the food in kg) energy_add (amount of energy it will add once consumed) happiness_add (amount of happiness it will add once consumed) Modify the Child and the Friends classes such that: Instead of accepting a string (as food) in the eat method, the method should accept a Foodobject Once a Child/Friendsobject eats a Food object: The added weight should be the Food object’s weight The added energy should be the Food object’s energy_add The added happiness should be the Food object’s happiness_add The given code (can also be found on the picture): class Child: def __init__(self, child_number: int, name: str, weight: float): self.child_number = child_number self.name = name self.weight = weight def…TOPIC: Inheritance In Python, modify the given code based on the given specifications below. Create another class, “Food.” For the Food class, the specifications are: The object will have the following attributes on initialization: weight (weight of the food in kg) energy_add (amount of energy it will add once consumed) happiness_add (amount of happiness it will add once consumed) Modify the Child and the Friends classes such that: Instead of accepting a string (as food) in the eat method, the method should accept a Foodobject Once a Child/Friendsobject eats a Food object: The added weight should be the Food object’s weight The added energy should be the Food object’s energy_add The added happiness should be the Food object’s happiness_add After modifying the Child and Friends behavior, simulate a small group of Friends. In the main code, do the following: Accept a positive integer from the user that determines the number of friends and create a number of Friends specified…It is possible for a class to have more than one constructor.A) This is correct. B) The answer is False.
