class Student:definit__(self, first, last, gpa):self.first = first # first name#last nameself.last = lastself.gpagpa# grade point averagedef get_gpa(self):return self.gpadef get_last (self):return self.lastdef to_string(self):return self.first + T1class Course:definit__(self):self.rosterdef drop_student(self, student):# Type your code heredef add_student(self, student):self.roster.append(student)def count students(self):return len(self.roster)if __name__1+ self.last +_main__":# list of Student objectscourse Course()1(GPA:+ str(self.gpa) + ')'course.add_student (Student('Henry', 'Nguyen', 3.5))course.add_student(Student('Brenda', 'Stern', 2.0))course.add_student (Student('Lynda', 'Robinson', 3.2))course.add_student (Student('Sonya', 'King', 3.9))print (f'Course size: { course.count_students() } students')course.drop_student('Stern')print (f'Course size after drop: { course.count_students() } students') 14.24 LAB: Drop studentComplete the Course class by implementing the drop_student() instance method, which removes a student (by last name) from the courseroster. If the student is not found in the course roster, no student should be dropped.The file main.py contains:The main function for testing the program.• Class Course represents a course, which contains a list of Student objects as a course roster. (Type your code in here.)Class Student represents a classroom student, which has three attributes: first name, last name, and GPA. (Hint: get_last() returns thelast name field.)●●Note: For testing purposes, different student values will be used.Ex. For the following students:Henry Nguyen 3.5Brenda Stern 2.0Lynda Robison 3.2Sonya King 3.9the output for dropping Stern is:Course size: 4 students.Course size after drop: 3 students

Introduction In Python, a function is a named and reusable block of code that performs a specific…

class Student: definit__(self, first, last, gpa): self.first = first # first name self.last last #last name self.gpagpa #grade point average def get_gpa(self): return self.gpa def get_last (self): return self.last def to_string(self): 1 return self.first + ' ' + self.last + (GPA: class Course: definit__(self): self.roster = [] #list of Student objects def drop_student(self, student): # Type your code here def add_student(self, student): self.roster.append(student) def count students(self): return len(self.roster) if __name__ "__main__": course Course() 1 + str(self.gpa) + ')' course.add_student(Student('Henry', 'Nguyen', 3.5)) course.add_student (Student('Brenda', 'Stern', 2.0)) course.add_student (Student('Lynda', 'Robinson', 3.2)) course.add_student(Student('Sonya', 'King', 3.9)) print(f'Course size: { course.count_students() } students') course.drop_student('Stern') print (f'Course size after drop: { course.count_students() } students')

class Student: definit__(self, first, last, gpa): self.first = first # first name self.last last #last name self.gpagpa #grade point average def get_gpa(self): return self.gpa def get_last (self): return self.last def to_string(self): 1 return self.first + ' ' + self.last + (GPA: class Course: definit__(self): self.roster = [] #list of Student objects def drop_student(self, student): # Type your code here def add_student(self, student): self.roster.append(student) def count students(self): return len(self.roster) if name "main": course Course() 1 + str(self.gpa) + ')' course.add_student(Student('Henry', 'Nguyen', 3.5)) course.add_student (Student('Brenda', 'Stern', 2.0)) course.add_student (Student('Lynda', 'Robinson', 3.2)) course.add_student(Student('Sonya', 'King', 3.9)) print(f'Course size: { course.count_students() } students') course.drop_student('Stern') print (f'Course size after drop: { course.count_students() } students')

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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class Widget: """A class representing a simple Widget === Instance Attributes (the attributes of this class and their types) === name: the name of this Widget (str) cost: the cost of this Widget (int); cost >= 0 === Sample Usage (to help you understand how this class would be used) === >>> my_widget = Widget('Puzzle', 15) >>> my_widget.name 'Puzzle' >>> my_widget.cost 15 >>> my_widget.is_cheap() False >>> your_widget = Widget("Rubik's Cube", 6) >>> your_widget.name "Rubik's Cube" >>> your_widget.cost 6 >>> your_widget.is_cheap() True """ # Add your methods here if __name__ == '__main__': import doctest # Uncomment the line below if you prefer to test your examples with doctest # doctest.testmod()
arrow_back Starting Out With Visual C# (5th Edition) 5th Edition Chapter 11, Problem 1PP arrow_back_ios PREVIOUS NEXT arrow_forward_ios Question share_out_linedSHARE SOLUTION Chapter 11, Problem 1PP Program Plan Intro Employee and ProductionWorker Classes Program plan: Design the form: Place a three text boxes control on the form, and change its name and properties to get the employee name, number, and hourly pay rate from the user. Place a four label boxes control on the form, and change its name and properties. Place a two radio buttons control on the form, and change its name and properties. Place a one group box control on the form, and change its name and properties. Place a command button on the form, and change its name and properties to retrieve the object properties and then display the values into label box. In code window, write the code: Program.cs: Include the required libraries. Define the namespace “Program11_1”. Define a class “Program”. Define a constructor for the…
python class Student:def __init__(self, first, last, gpa):self.first = first # first nameself.last = last # last nameself.gpa = gpa # grade point average def get_gpa(self):return self.gpa def get_last(self):return self.last def to_string(self):return self.first + ' ' + self.last + ' (GPA: ' + str(self.gpa) + ')' class Course:def __init__(self):self.roster = [] # list of Student objects def drop_student(self, student):# Type your code here def add_student(self, student):self.roster.append(student) def count_students(self):return len(self.roster) if __name__ == "__main__":course = Course() course.add_student(Student('Henry', 'Nguyen', 3.5))course.add_student(Student('Brenda', 'Stern', 2.0))course.add_student(Student('Lynda', 'Robinson', 3.2))course.add_student(Student('Sonya', 'King', 3.9)) print('Course size:', course.count_students(),'students')course.drop_student('Stern')print('Course size after drop:', course.count_students(),'students')
class Student: def __init__(self, id, fn, ln, dob, m='undefined'): self.id = id self.firstName = fn self.lastName = ln self.dateOfBirth = dob self.Major = m def set_id(self, newid): #This is known as setter self.id = newid def get_id(self): #This is known as a getter return self.id def set_fn(self, newfirstName): self.fn = newfirstName def get_fn(self): return self.fn def set_ln(self, newlastName): self.ln = newlastName def get_ln(self): return self.ln def set_dob(self, newdob): self.dob = newdob def get_dob(self): return self.dob def set_m(self, newMajor): self.m = newMajor def get_m(self): return self.m def print_student_info(self): print(f'{self.id} {self.firstName} {self.lastName} {self.dateOfBirth} {self.Major}')all_students = []id=100user_input = int(input("How many students: "))for x in range(user_input): firstName = input('Enter…
Exercise 1-Account class • Design a class named Account that contains : • A private int data field named id for the account • A private double data field named balance for the account • A privet Date data field named dateCreated that stores the date when the account was created • A no-arg constructor that creates a default account • A constructor that creates an account with the specified id and initial balance • The getters (i.e., accessors) and setters (i.e., mutators) methods for id and balance • The getter method for dateCreated • A method named withdraw that withdraws a specified amount from the account • A method named deposit that deposits a specified amount to the account
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INVENTORY CLASS You need to create an Inventory class containing the private data fields, as well as the methods for the Inventory class (object). Be sure your Inventory class defines the private data fields, at least one constructor, accessor and mutator methods, method overloading (to handle the data coming into the Inventory class as either a String and/or int/float), as well as all of the methods (methods to calculate) to manipulate the Inventory class (object). The data fields in the Inventory class include the inventory product number (int), inventory product description (String), inventory product price (float), inventory quantity on hand (int), inventory quantity on order (int), and inventory quantity sold (int). The Inventory class (java file) should also contain all of the static data fields, as well as static methods to handle the logic in counting all of the objects processed (counter), as well as totals (accumulators) for the total product inventory and the total product…
class Calculator: # Type your code here. if __name__ == "__main__": calc = Calculator(); num1 = float(input()) num2 = float(input()) # 1. The initial value print('{:.1f}'.format(calc.get_value())) # 2. The The value after adding num1 calc.add(num1) print('{:.1f}'.format(calc.get_value())) # 3. The value after multiplying by 3 calc.multiply(3) print('{:.1f}'.format(calc.get_value())) # 4. The value after subtracting num2 calc.subtract(num2) print('{:.1f}'.format(calc.get_value())) # 5. The value after dividing by 2 calc.divide(2) print('{:.1f}'.format(calc.get_value())) # 6. The value after calling the clear() method calc.clear() print('{:.1f}'.format(calc.get_value()))
Python Code please Point of Sale Write a program that will manage the point of sale in a store. Build the ItemToPurchase class with the following: Attributes item_name (string) item_price (int) item_quantity (int) Default constructor Initializes item's name = "none", item's price = 0, item's quantity = 0 Method print_item_cost() Example of print_item_cost() output:Bottled Water 10 @ $1 = $10 Extend the ItemToPurchase class to contain a new attribute. item_description (string) - Set to "none" in default constructor Implement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter. Example of print_item_description() output:Bottled Water: Deer Park, 12 oz. Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor…
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class Course { private String courseNumber; private String courseName; private int creditHrs; public Course (String number, String name, int creditHrs){ this.courseNumber = number; this.courseName = name; this.creditHrs = creditHrs; } public String getNumber() { return courseNumber; } public String getName() { return courseName; } public int getCreditHrs() { return creditHrs; } public void setCourseNumber(String courseNumber) { this.courseNumber = courseNumber; } public void setCourseName(String courseName) { this.courseName = courseName; } public void setCreditHrs(int creditHrs) { this.creditHrs = creditHrs; }}class Student { private String firstName; private String lastName; private String gender; private String phoneNumber; private String email; private String jNumber; protected ArrayList courseList; public String getFullName() {…