Explain abstract class, Computer Engineering

Assignment Help:

What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why?  

Abstract classes are closely related to interfaces. They are classes that cannot be instantiated, and are frequently either partially executed, or not at all implemented. One key difference among abstract classes and interfaces is that a class may execute an unlimited number of interfaces, but may inherit from only single abstract (or any other kind of) class. A class that is derived from an abstract class may still execute interfaces. Abstract classes are useful when creating components because they permit you specify an invariant level of functionality in some methods, but leave the implementation of other methods until a specific implementation of that class is required. They also version well, because if additional functionality is required in derived classes, it can be added to the base class without breaking code.

 


Related Discussions:- Explain abstract class

Explain deadlock detection algorithm for single instance, Explain deadlock ...

Explain deadlock detection algorithm for single instance of each resource type. For single instance of each resource type the deadlock detection algorithm: (i) Maintain a wa

Difference between latches and flip-flops based designs, What is the differ...

What is the difference between latches and flip-flops based designs Latches are level sensitive whether flip-flops are edge sensitive. So, latch based design and flop based des

increase the number of rows or columns in a worksheet, How can I increase ...

How can I increase the number of rows or columns in a worksheet? Ans) In Excel, each workbook has 255 columns and 65,526 rows. These values are fixed and cannot be changed. If

What is meant by latch, Latch is a D- type flip-flop used as a temporary st...

Latch is a D- type flip-flop used as a temporary storage device controlled by a timing signal, which can kept 0 or 1. The primary function of a Latch is data storage. It is used in

Explain the main tags of wireless markup language, Discuss the main tags of...

Discuss the main tags of WML. Tag Definition of Wireless Markup Language: This defines the starting and the ending of the page, as .   this explains

Use verilog function to define the width of a multi-bit port, Can I use a V...

Can I use a Verilog function to define the width of a multi-bit port, wire, or reg type? Width  elements  of  ports,  wire  or  reg  declarations  require  a  constant  in  bot

The voltage of telephone given by telephone companies, Telephone companies ...

Telephone companies normally provide a voltage of to power telephones? Telephone companies usually give a voltage of to power telephones -48 volts DC.

Calculate the propagation delay for output, Problem: (a) Consider the ...

Problem: (a) Consider the following combinational circuit: (i) Calculate the propagation delay for each output. Assume each gate has a delay of 10 ns. (ii) The abo

Define the fundamentals of computer system, Define the Fundamentals of comp...

Define the Fundamentals of computer system A computer processes digital information. In order to do that it runs (executes) a machine language program. As an illustration, when

What is application software, What is application software? Give example. ...

What is application software? Give example. Application programs are usually written in a high level programming language, in which the programmer states mathematical or text p

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd