class Student: students=0# this is a class attribute def_init_(self, name, ta): self.name = name # this is an instance attribute self.understanding = 0 Student.students += 1 print("There are now " + str(Student.students)+" students") ta.add_student (self) def visit_office_hours(self, staff): staff.assist (self) print("Thanks, " + staff.name) class Professor: definit_(self, name): self.name = name self.students = {} def add_student (self, student): self.students[ student.name] = student def assist (self, student): student.understanding += 1 What will be the output of the following lines? >>> snape = Professor("Snape") >>> harry = Student("Harry", snape) a) >>> harry.visit_office_hours(snape) b) >>> X >>> harry.visit_office_hours(Professor("Hagrid")) c) >>> harry.understanding d) >>> [name for name in snape.students] e) >>> X = Student("Hermione", Professor("McGonagall")).name f)
class Student: students=0# this is a class attribute def_init_(self, name, ta): self.name = name # this is an instance attribute self.understanding = 0 Student.students += 1 print("There are now " + str(Student.students)+" students") ta.add_student (self) def visit_office_hours(self, staff): staff.assist (self) print("Thanks, " + staff.name) class Professor: definit_(self, name): self.name = name self.students = {} def add_student (self, student): self.students[ student.name] = student def assist (self, student): student.understanding += 1 What will be the output of the following lines? >>> snape = Professor("Snape") >>> harry = Student("Harry", snape) a) >>> harry.visit_office_hours(snape) b) >>> X >>> harry.visit_office_hours(Professor("Hagrid")) c) >>> harry.understanding d) >>> [name for name in snape.students] e) >>> X = Student("Hermione", Professor("McGonagall")).name f)
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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Question
Help please
![Classes - Below we have defined the classes Professor and Student. Remember that we pass the self argument implicitly to instance methods
when using dot-notation.
class Student:
students
definit__(self, name, ta):
self.name = name # this is an instance attribute
self.understanding = 0
Student.students += 1
0# this is a class attribute
a)
print("There are now " + str(Student.students) + " students")
ta.add_student (self)
def visit_office_hours (self, staff):
staff.assist(self)
print("Thanks, " + staff.name)
class Professor:
def _init__(self, name):
self.name = name
self.students
def add_student (self, student):
self.students[ student.name] student
def assist (self, student):
What will be the output of the following lines?
>>> snape = Professor("Snape")
>>> harry = Student("Harry", snape)
e)
student.understanding += 1
>>> harry.visit_office_hours(snape)
b)
>>> harry.visit_office_hours(Professor("Hagrid"))
c)
>>> harry.understanding
d)
>>> [name for name in snape.students]
>>> x = Student("Hermione", Professor("McGonagall")).name
f)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7254041f-630f-4200-a459-93bb3cb797e4%2F6d823aa6-7884-4e1e-b86f-e3235d65d6a8%2Fxrax1y_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Classes - Below we have defined the classes Professor and Student. Remember that we pass the self argument implicitly to instance methods
when using dot-notation.
class Student:
students
definit__(self, name, ta):
self.name = name # this is an instance attribute
self.understanding = 0
Student.students += 1
0# this is a class attribute
a)
print("There are now " + str(Student.students) + " students")
ta.add_student (self)
def visit_office_hours (self, staff):
staff.assist(self)
print("Thanks, " + staff.name)
class Professor:
def _init__(self, name):
self.name = name
self.students
def add_student (self, student):
self.students[ student.name] student
def assist (self, student):
What will be the output of the following lines?
>>> snape = Professor("Snape")
>>> harry = Student("Harry", snape)
e)
student.understanding += 1
>>> harry.visit_office_hours(snape)
b)
>>> harry.visit_office_hours(Professor("Hagrid"))
c)
>>> harry.understanding
d)
>>> [name for name in snape.students]
>>> x = Student("Hermione", Professor("McGonagall")).name
f)
![Classes - Below we have defined the classes Professor and Student. Remember that we pass the self argument implicitly to instance methods
when using dot-notation.
class Student:
students
definit__(self, name, ta):
self.name = name # this is an instance attribute
self.understanding = 0
Student.students += 1
0# this is a class attribute
a)
print("There are now " + str(Student.students) + " students")
ta.add_student (self)
def visit_office_hours (self, staff):
staff.assist(self)
print("Thanks, " + staff.name)
class Professor:
def _init__(self, name):
self.name = name
self.students
def add_student (self, student):
self.students[ student.name] student
def assist (self, student):
What will be the output of the following lines?
>>> snape = Professor("Snape")
>>> harry = Student("Harry", snape)
e)
student.understanding += 1
>>> harry.visit_office_hours(snape)
b)
>>> harry.visit_office_hours(Professor("Hagrid"))
c)
>>> harry.understanding
d)
>>> [name for name in snape.students]
>>> x = Student("Hermione", Professor("McGonagall")).name
f)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7254041f-630f-4200-a459-93bb3cb797e4%2F6d823aa6-7884-4e1e-b86f-e3235d65d6a8%2F1qbexhf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Classes - Below we have defined the classes Professor and Student. Remember that we pass the self argument implicitly to instance methods
when using dot-notation.
class Student:
students
definit__(self, name, ta):
self.name = name # this is an instance attribute
self.understanding = 0
Student.students += 1
0# this is a class attribute
a)
print("There are now " + str(Student.students) + " students")
ta.add_student (self)
def visit_office_hours (self, staff):
staff.assist(self)
print("Thanks, " + staff.name)
class Professor:
def _init__(self, name):
self.name = name
self.students
def add_student (self, student):
self.students[ student.name] student
def assist (self, student):
What will be the output of the following lines?
>>> snape = Professor("Snape")
>>> harry = Student("Harry", snape)
e)
student.understanding += 1
>>> harry.visit_office_hours(snape)
b)
>>> harry.visit_office_hours(Professor("Hagrid"))
c)
>>> harry.understanding
d)
>>> [name for name in snape.students]
>>> x = Student("Hermione", Professor("McGonagall")).name
f)
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