Starting Out with Python (3rd Edition)
3rd Edition
ISBN: 9780133582734
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 11, Problem 1TF
Polymorphism allows you to write methods in a subclass that have the same name as methods in the superclass.
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True or False A subclass can override methods from its superclass.
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Chapter 11 Solutions
Starting Out with Python (3rd 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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- 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_forwardvariables are variables that have the same name as variables that have been declared in a superclass and are declared in a subclass, respectively.arrow_forwardWeite java code to implement given statements An abstract class must be declared with an abstract keyword.• It can have abstract and non-abstract methods.• It cannot be instantiated.• It can have constructors and static methods also.• It can have final methods which will force the subclass not to change the body of the method.arrow_forward
- True or False A class can implement more than one interface.arrow_forwardTrue or False ___(7) An object can be created from an interface. ___(8) An object in a super class can be assigned to a subclass variable. ___(9) Overriding and overloading a method is the same.arrow_forwardTrue or False ___(1) An abstract class can have fields. ___(2) You can create an object from an abstract class _ _(3) An abstract class can have both abstract methods and methods that have method bodyarrow_forward
- When a variable declared in a subclass has the same name as a variable declared in a superclass, it is called a _______________ variable.arrow_forwardAssignment: Write the class XXXX_Worker with constructors, accessors, mutuators, and a toString method. A Worker has a Worker Name and Number. Write the class XXXX_ProductionWorker which is a subclass of Worker. The production worker has a shift number (values: 1 or 2) and an Hourly pay rate. A shift number of 1 means the day shift and 2 means the night shift. Write the class XXXX_ShiftSupervisor which is a subclass of Worker. The shift supervisor is a salaried worker who supervises a shift. The shift supervisor has a yearly bonus field. The yearly bonus is earned at year end based on performance. Write a class, XXXX_TestWorker, which does the following: Creates one Shift Supervisor object from information entered by the user. Creates an Array of Production Workers that can hold 3 objects. Itcreates3ProductionWorkerobjectsfrominformationenteredbytheuser Prints the information about each object in the format shown below using the toString methods of the…arrow_forwardTrue 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.arrow_forward
- Person and Customer Classes Write a class named (Person) with data attributes for a person’s name, address, and telephone number. Provide accessors/getters and mutators/setters for each attribute. Write a displayPerson() to print out the attributes of the Person. Next, write a class named (Customer) that is a subclass of the (Person) class. The (Customer) class should have a data attribute for a customer number, and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Provide accessors/getters and mutators/setters for each attribute. Write a display customer() to print out the attributes of the Customer. Demonstrate an instance of the (Customer) class in a simple program.arrow_forwardTo implement an interface, a concrete class must implement AT LEAST ONE method heading.arrow_forwardJava Programming Create "Mammal" class as a parent class and "cat" as a child class Mammal(Superclass) Attributes name Methods move() eat() cat (Subclass) Attributes age Methods dispaly() eat() Override eat method in cat subclass. Print something in methods such as in move method you can print “I can move”. Test the inheritance with creating objects and calling parent and child methods. Create object of a child class by passing arguments to the constructor.arrow_forward
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