Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 2MC
In an inheritance relationship, the _________ is the specialized class.
a. superclass
b. master class
c. subclass
d. parent class
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In an inheritance relationship, the __________ is the general class. a. derived class b. base class c. dependent class d. child class
In an inheritance relationship, the __________ is the specialized class. a. base class b. master class c. derived class d. parent class
True or False:Unlike other members of a superclass, constructors of a superclass are not inherited by its subclasses. This means that you must define a constructor for a class or use the default constructor added by the compiler.
Chapter 11 Solutions
Starting Out with Python (4th Edition)
Ch. 11.1 - In this section, we discussed superclasses and...Ch. 11.1 - Prob. 2CPCh. 11.1 - What does a subclass inherit from its superclass?Ch. 11.1 - Look at the following code, which is the first...Ch. 11.2 - Look at the following class definitions: class...Ch. 11 - In an inheritance relationship, the ___________ is...Ch. 11 - In an inheritance relationship, the _________ is...Ch. 11 - Suppose a program uses two classes: Airplane and...Ch. 11 - This characteristic of object-oriented programming...Ch. 11 - Prob. 5MC
Ch. 11 - Polymorphism allows you to write methods in a...Ch. 11 - It is not possible to call a superclasss _ _init_...Ch. 11 - A subclass can have a method with the same name as...Ch. 11 - Only the _ _init_ _method can be overridden.Ch. 11 - You cannot use the isinstance function to...Ch. 11 - What does a subclass inherit from its superclass?Ch. 11 - Look at the following class definition. What is...Ch. 11 - Prob. 3SACh. 11 - Write the first line of the definition for a...Ch. 11 - Look at the following class definitions: class...Ch. 11 - Look at the following class definition: class...Ch. 11 - Employee and ProductionWorker Classes Write an...Ch. 11 - ShiftSupervisor Class In a particular factory, a...Ch. 11 - Person and Customer Classes The Person and...
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- A constructor has the same name as the class and is automatically called when a new object of the class is created. It is used to perform initialization functions. A constructor may or may not have input arguments. The keyword extends is used to indicate inheritance. Class B extends Class A implies that Class B is inheriting the attributes and methods of class A. Class A is the base class and Class B is the derived class. It is also possible for the derived class to reference the constructor of the base class in its constructor. This will avoid duplicating initialization functions. note:write the java code and don't use any packagearrow_forwardA class that represents a more specific entity in an inheritance hierarchy is called a/an _____. Please explain. Default class Superclass Subclass Inheritance classarrow_forwardThe entire list of parent classes from which a child class is derived constitutes the ____ of the subclass. a. children b. derivatives c. subordinates d. ancestorsarrow_forward
- In order to extend a class, the new class should have access to all the data and inner workings of the parent class. True Falsearrow_forwardThe properties of a child class are inherited by the parent class. Select one: True Falsearrow_forwardThe ability to create classes that share the attributes and methods of existing classes but with more specific features is known as : Abstraction Polymorphism Typecasting Inheritancearrow_forward
- The super keyword is used in a subclass constructor to explicitly control the superclass constructor that must be invoked before the execution of the subclass constructor proceeds. * True O Falsearrow_forwardParent Class: Food Write a parent class called Food. A food is described by a name, the number of grams of sugar (as a whole number), and the number of grams of sodium (as a whole number). Core Class Components For the Food class, write: the complete class header the instance data variables a constructor that sets the instance data variables based on parameters getters and setters; use validity checking on the parameters where appropriate a toString method that returns a text representation of a Food object that includes all three characteristics of the food Class-Specific Method Write a method that calculates what percent of the daily recommended amount of sugar is contained in a food. The daily recommended amount might change, so the method takes in the daily allowance and then calculates the percentage. For example, let's say a food had 6 grams of sugar. If the daily allowance was 24 grams, the percent would be 0.25. For that same food, if the daily allowance was 36 grams, the…arrow_forward__________ allows a base class reference variable to reference a derived class object. a. Polymorphism b. Inheritance c. Generalization d. Specializationarrow_forward
- The ability to create classes with more specific attributes and methods that share the properties and methods of existing classes is referred to as: Abstraction Polymorphism Typecasting Inheritancearrow_forwardChild Class: Vegetable Write a child class called Vegetable. A vegetable is described by a name, the number of grams of sugar (as a whole number), the number of grams of sodium (as a whole number), and whether or not the vegetable is a starch. Core Class Components For the Vegetable class, write: the complete class header the instance data variables a constructor that sets the instance data variables based on parameters getters and setters; use instance data variables where appropriate a toString method that returns a text representation of a Vegetable object that includes all four characteristics of the vegetableJavaarrow_forwardöclhäll daila Declare an abstract class named A that contains: 1-A private static integer variable called C 2-A private integer variable called id 3-A constructor with no argument that sets id = 4-A public method Area() that returns 1.2 5-An abstract method getName () id + C Declare a derived class from A called B that contains: 1- Two integer variables x and y 2- A constructor to initialize the fields of B class 3- Two accessor methods getx() and gety() that return the values of - An overridden method getName() that returns the name of the class and y reclare a derived class from B called Circle that contains: - A protected double variables radius - A constructor to initialize the fields of Circle - An overridden method getName() that returns the name of the class - An overridden method Area() that calculates and B classes and returns the of Circle ite a test program to invoke the different methods declared in B and Circle classes areaarrow_forward
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