Which statement is the most accurate for the code below? class A: def _init__(self, i = 0): self.i = i class B(A): def _init_____(self, j = 0): self.j = j def main(): b = B() print (b.i) print (b.j) main() Class B inherits A, but the data field i in A is not inherited. O Class B inherits A, thus automatically inherits all data fields in A. Creating an object of type B requires to pass an argument such as B(6). O The data field j cannot be accessed by the object b.

Which statement is the most accurate for the code below? class A: def _init__(self, i = 0): self.i = i class B(A): def _init_____(self, j = 0): self.j = j def main(): b = B() print (b.i) print (b.j) main() Class B inherits A, but the data field i in A is not inherited. O Class B inherits A, thus automatically inherits all data fields in A. Creating an object of type B requires to pass an argument such as B(6). O The data field j cannot be accessed by the object b.

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

See similar textbooks

Similar questions

class Duration: def __init__(self, hours, minutes): self.hours = hours self.minutes = minutes def __add__(self, other): total_hours = self.hours + other.hours total_minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total_minutes -= 60 return Duration(total_hours, total_minutes) first_trip = Duration(3, 36)second_trip = Duration(0, 47) first_time = first_trip + second_tripsecond_time = second_trip + second_trip print(first_time.hours, first_time.minutes) what is the output
10 T OR FA class that implements the Runnable interface must implement the run method.
C:/Users/r1821655/CLionProjects/untitled/sequence.cpp:48:5: error: return type specification for constructor invalidtemplate <class Item>class sequence{public:// TYPEDEFS and MEMBER SP2020typedef Item value_type;typedef std::size_t size_type;static const size_type CAPACITY = 10;// CONSTRUCTORsequence();// MODIFICATION MEMBER FUNCTIONSvoid start();void end();void advance();void move_back();void add(const value_type& entry);void remove_current();// CONSTANT MEMBER FUNCTIONSsize_type size() const;bool is_item() const;value_type current() const;private:value_type data[CAPACITY];size_type used;size_type current_index;};} 48 | void sequence<Item>::sequence() : used(0), current_index(0) { } | ^~~~ line 47 template<class Item> line 48 void sequence<Item>::sequence() : used(0), current_index(0) { }
JAVA Programming Problem 3 - Book A Book has such properties as title, author, and numberOfPages. A Volume will have properties such as volumeName, numberOfBooks, and an array of book objects (Book [ ]). You are required to develop the Book and Volume classes, then write an application (DemoVolume) to test your classes. The directions below will give assistance. Create a class called Book with the following properties using appropriate data types: Title, Author, numberOfPages, Create a second class called Volume with the following properties using appropriate data types: volumeName, numberOfBooks and Book [ ]. The Book [ ] contains an array of book objects. Directions Create a class called Book with the following properties using appropriate data types: Title, Author, numberOfPages, The only methods necessary in the Book class, for this exercise, are the constructor and a toString(). Create a second class called Volume with the following properties using appropriate data types:…
Create a Class called Transaction with: instance variables: stock - your stock class type - char -> b or s (buy/sell) quantity - can be fractional price - buy/sell price when - LocalDate constructors: constructor with parameters for stock, type and quantity. - sets the price from the stock price instance variable - sets when from LocalDate getters and setters for each instance variable
Question 31 class Person: def __init__(mysillyobject, name, age): = name mysillyobject.name mysillyobject.age = age def myfunc(abc): print("Hello my age is", abc.age) p1 = Person("John", 36) p1.age = 40 p1.myfunc() O 40 Hello my age is 40 36 Hello my age is 36
/ CONSTANT// static const int DEFAULT_CAPACITY = ____// IntSet::DEFAULT_CAPACITY is the initial capacity of an// IntSet that is created by the default constructor (i.e.,// IntSet::DEFAULT_CAPACITY is the highest # of distinct// values "an IntSet created by the default constructor"// can accommodate).//// CONSTRUCTOR// IntSet(int initial_capacity = DEFAULT_CAPACITY)// Post: The invoking IntSet is initialized to an empty// IntSet (i.e., one containing no relevant elements);// the initial capacity is given by initial_capacity if// initial_capacity is >= 1, otherwise it is given by// IntSet:DEFAULT_CAPACITY.// Note: When the IntSet is put to use after construction,// its capacity will be resized as necessary.//// CONSTANT MEMBER FUNCTIONS (ACCESSORS)// int size() const// Pre: (none)// Post: Number of elements in the invoking IntSet is returned.// bool isEmpty() const// Pre: (none)//…
// CONSTANT// static const int DEFAULT_CAPACITY = __10__// IntSet::DEFAULT_CAPACITY is the initial capacity of an// IntSet that is created by the default constructor (i.e.,// IntSet::DEFAULT_CAPACITY is the highest # of distinct// values "an IntSet created by the default constructor"// can accommodate).//// CONSTRUCTOR// IntSet(int initial_capacity = DEFAULT_CAPACITY)// Post: The invoking IntSet is initialized to an empty// IntSet (i.e., one containing no relevant elements);// the initial capacity is given by initial_capacity if// initial_capacity is >= 1, otherwise it is given by// IntSet:DEFAULT_CAPACITY.// Note: When the IntSet is put to use after construction,// its capacity will be resized as necessary.//// CONSTANT MEMBER FUNCTIONS (ACCESSORS)// int size() const// Pre: (none)// Post: Number of elements in the invoking IntSet is returned.// bool isEmpty() const// Pre: (none)//…
Personal Information Class: Design a class called Employee that holds the following data about an employee: name ID number Department Job Title Class. Store your class in a separate file called employee.py. Your class will have an initializer method that will be passed the information entered by the user as arguments. Write appropriate accessor and mutator methods for each data attribute. Write a __str__ method to print the contents of the class (see example of __str__ on p. 523). Main program: Your main program should create three instances of the class. Your program should get the information from the user and pass it as parameters to the initializer method. Using the __str__ method invoked by the print function, the program should display the personal information for the three individuals. Output and Sample Dialog: Enter employee name: Mary Smith Enter employee ID: 123456 Enter department: Accounting Enter position: Accountant Enter employee name: Joe Morales Enter…