C Which of the following is true? A) A class can only implement one class A class can extend many classes B) A class can only extend one class A class can implement many classes C) A class can extend many classes A class can implement many classes D) A class can only extend one class A class can only implement one class OC OD 4 O A OB
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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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- highlight the correct answer 6. A class should take any number as an argument but no other data types. Which code does this? a. public class xyz <T> b. public class xyz <T extends Number> c. public class xyz <T implements Number> d. public class xyz <T extends Integer> 7. Log4j.properties is set to 'warn'. Which would show in the log file? a. Info b. Debug c. Trace d. Error 8. Which would lock an object so that it could only be used by a single thread? a. join() b. yield() c. synchronized() d. start() 9. Which of the following is an example of a dependency between 2 objects? a. Vehicle and car b. Person and employee c. Pilot and plane d. Generic database reader and Oracle database reader1. Create a Student class that implements the Person interface. As well as storing the students name and email, also store their course grade (e.g A, B, C) in a member variable. The grade should be accessible via a getGrade method. For the implementation of getDescription return a message along the lines of “A C grade student”, substituting the students actual grade.2. Create a Lecturer class that implements the Person interface. This class should also store the subject that the lecturer teaches. Add a getSubject method, and implement getDescription so that it returns a suitable message, e.g. “Teaches Biology”.3. Create a third class, Employee that implements the interface. This should also store the name of the department the Employee works in (available via getDepartment). Again, getDescription should return a suitable message.build a student class implement the student class with the following instance variables: * id * firstName *lastName *dateOfBirth * Major create an __init__ function adn initialize all the fields make the "major" an option field and set a default value to "undefined" create a setter and getter function for all these five variables create another function: "print_student_info()" which prints 5 pieces of information: id, first name, last name, date of birth, and major. Make sure to have proper formatting done for printing these 5 things. Use the student class Task 1: create an empty list named "all_students" Task 2: create a variable named "id" and initialize it to 100 (some default value to start with, next id would be 101) Task 3: ask the user for input "How many students:" Task 4: Now run a for loop based on that input number and do the following things for each iteration: - get input of student's first name, last name, date of birth, and major - user should be able to skip the…
- Given the provided class, please make the following modifications. class Employee: def __init__(self, name, number): self.name = name self.number = number class ProductionWorker(Employee): def __init__(self, name, number, shift_number, employee_number): Employee.__init__(self, name, number) self.shift_number = shift_number self.employee_number = employee_number # Create an instance of the ProductionWorker class and test itemployee1 = ProductionWorker("John Doe", 1234, 2, 5678)print(employee1.name)print(employee1.number)print(employee1.shift_number)print(employee1.employee_number) Write a class that creates an object of the ProductionWorker class and prompts the user to enter data for each of the object's data attributes. Store the data in the object, then use the object's accessor methods to retrieve it and display it on the screen.Question: 3Implement the design of the Student_Tutor class that inherit from Student class so that the following code generates the output below:Hint: Each room has a capacity of 2 Student tutors.class Student: def __init__(self,name,student_id): self.name = name self.student_id = student_id self.semester = "Spring 2022" def details(self): print("Name:",self.name) print("Student_ID:",self.student_id) print("Current Semester:",self.semester)# Write your code here:STs = []S1 = Student("Reem", 18101235)S1.details()print("1.======================================")ST1 = Student_Tutor("Moynul", 16107892, 35, "CSE110", "CSE111")ST2 = Student_Tutor("Priyo", 16107792, 25,"CSE320")ST3 = Student_Tutor("Ronok", 18207892, 36, "CSE110", "CSE111", "CSE221", "CSE220")ST4 = Student_Tutor("Zeba", 19307892, 48, "CSE110")STs.extend([ST1, ST2, ST3, ST4])print("2.======================================")for i in range(len(STs)): STs[i].details()…Create a Person class that has the properties: name and age. Override toString so that it displays a Person object like this: Where name is the value of the name property and age is the value of the age property. "<Name: name, Age: age>" Person class should have a natural ordering by age in descending order. Create a Main.java file that: Sorts a List of people using Person’s natural ordering. Uses a custom Comparator with an anonymous class that sorts the List of people by name in ascending order. Uses a custom Comparator with a lambda implementation that sorts the list of people by name in descending order.
- Design Naruto class and MyHeroAcademia class which inherit from Anime class so that the following code provides the expected output. You can not change any of the given code. Do not modify the given parent class.Note: add_character() method in both child classes should work for any number of parameters and assume parameters will be even numbers.class Anime: def __init__(self, name, rating, genre): self.name = name self.rating = rating self.genre = genre def add_character(self, *info): pass def __str__(self): s = f"Name: {self.name}\nRating: {self.rating}\nGenre: {self.genre}" return s# Write your codes here.naruto = Naruto("Naruto", 10, "Adventure Fiction", 2007)naruto.add_character("Naruto Uzumaki", "Main", "Itachi Uchiha", "Main", "Madara Uchiha", "Anti Hero", "Pain", "Supporting", "Shikamaru Nara",…++1.+Write a class about a book which has following properties: • isbn • price • titleIn a Test class we are supposed to create objects as below: Book b1= new Book(); Book b2= new Book(544444, “Java”); Book b3= new Book(54444444, C++, 5.6); Book b4= new Book (“Python, 7.9, 8888899988); and we are supposed to print objects with the following statement: 5. System.out.println(b3); The the output should be:“Title of the book is C++, ISBN is 54444444”, price is 5.6 TL Now complete the Book class that enable to execute statements that mentioned in the Test class. Except the 5 items that mention above, please test: 6. Test the f(n) with 2 different numbers 7. Update the price of the b4 object.8. Test the Q3 method.m..Create a class called Line with the followings:1. Private members: p1 and p2 as pointer to Point objects (code provided below), slope and length as double variables2. Define setter and getter functions.3. Define a default constructor that allocate dynamic memory for points andset everything to 0.4. Overload a constructor that allocates memory for points, initilize themwith given arguments, and calculate the slope and length.5. Overload a destructor, a copy constructor and a copy assignment operator.6. Create a function called ”parallel” that return true when given lines areparallel and returns false otherwise7. Overload the less than (<) and greater than (>) and equality (==) oper-ators (compare the length)8. Write a functions that reads lines in the format provided in the lines.txtfrom the file and stores them in a vector named Lines.9. Sort the objects of Lines vector in descending order.10. Extend the functionality of cin and cout for this class11. Write a separate file to…
- Implement the Rectangle class as discussed this week. Use the class declaration below. Your job is to implement the functions. Implement the missing functions yourself. class Rectangle{ private: double width; double length; char *name; void initName(char *); public://constructorsRectangle();Rectangle(double, double, char*);//destructor ~Rectangle(); void setWidth(double); void setLength(double); void setWidth(char *); void setLength(char *); void setName(char *); double getWidth() const; double getLength() const; void printName() const { cout << name; }}; A few notes on the functions: initName(char *): this is a private member function. It should be the only function which dynamically allocates a char array to hold the name. setName(char *): this is a public member function which changes the name of the rectangle to a new name. It does not dynamically allocate memory, it only changes name. Demonstrate your class works…Question: Implement the following functions in your class: getTotalWords (returns the amount of total words), getUniqueWords (returns the amount of unique words), getMostUsedWord, (returns the word that is most used) getMaxOccurrence (returns how many times the most used word occured). Name them as indicated here. The code to add the functions to: import edu.princeton.cs.algs4.*;import edu.princeton.cs.algs4.LinearProbingHashST;import edu.princeton.cs.algs4.SeparateChainingHashST;import edu.princeton.cs.algs4.ST;import edu.princeton.cs.algs4.SequentialSearchST;import edu.princeton.cs.algs4.In;import edu.princeton.cs.algs4.StdOut; public class TestPerf { public static long LinearProbingHashST(String x[]) { LinearProbingHashST<String, Integer> st = new LinearProbingHashST<String, Integer>(); long start = System.currentTimeMillis(); for(int i = 0; i < x.length; i++){ String key = x[i]; if…1. Create the main method using pythone to test the classes. #Create the class personTypefrom matplotlib.pyplot import phase_spectrum class personType: #create the class constructor def __init__(self,fName,lName): #Initialize the data members self.fName = fName self.lName = lName #Method to access def getFName(self): return self.fName def getLName(self): return self.lName #Method to manipulate the data members def setFName(self,fName): self.fName = fName def setLName(self,lName): self.lName = lName #Create the class Doctor Type inherit from personTypeclass doctorType(personType): #Create the constructor for the doctorType class def __init__(self, fName, lName,speciality="unknown"): super().__init__(fName, lName) self.speciality = speciality #Methods to access def getSpeciality(self): return self.speciality #Methods to manipulate def setSpeciality(self,spc):…