Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Subclasses and Polymorphism ?
Car and Motorcycle are subclasses of MotorVehicle. If you instantiate a Car or a Motorcycle along with new, you can use in which object anywhere you can use a MotorVehicle, since cars are motor vehicles. As same you can use a Motorcycle anywhere you can use a MotorVehicle. This use of a subclass object in place of a superclass object is the starting of polymorphism. I'll say more about polymorphism later.
The converse is not true. While all cars are motor vehicles, not all motor vehicles are cars. A few are motorcycles. Thus if a method expects a Car object you shouldn't provides it a MotorVehicle object instead.
Remember that I said you shouldn't provide a method in which expects a Car a MotorVehicle. I didn't say you couldn't. Objects can be cast into their subclasses. This is useful while using data structures like Vectors that only handle generic objects. It's up to the programmer to remain track of what kind of object is stored in a Vector, and to use it accordingly.
The proper choice of classes and subclasses is a skill learned primarily by experience. There are often different ways to define classes.toString() as example of polymorphism
GIVING PSEUDOCODES
What are the different points where weaving can be applied? Ans) There are three points ? Compile Time ? Classload Time ? Runtime
Having one instance overall the application.eg.: Loggers
Taking in Command Line Arguments In Java, the program can be written to accept command-line-arguments. Example Code: command-line arguments /* This
I neeed to create a basic code to do the following. the class is entry level and I would appreciate a brief explanation as to why you do each bit. Write a program that displays t
Need to Insert Admob Code Into Android Application Project Description: We are seeking Android developer to add Admob code in to our application. It should be very simple
What are three ways in which a thread can enter the waiting state ?
Write a program that prompts for two people’s birthdays (month and day), along with today’s month and day. The program should figure out how many days remain until each user’s birt
Draw a 5 inch square on the screen using pseudocode
Is it right that garbage collection guarantee that a program will not run out of memory?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd