--%>
Assignment Help - homework help

Use Polymorphism

Use Polymorphism: Programs, especially those converted from non-OOP languages like C, sometimes use state where they should use inheritance. For example,

1225_polymorphism1.jpg

The variable type is used to explicitly store the type of an instance of class A or B. It is initialized in the constructors of both classes and is used in the A::foo() method to determine the exact type of the object so that the appropriate operations are carried out. Besides being error prone (type initialization, branch completeness) and breaking fundamental object-oriented abstraction rules (base classes should not have to know about their concrete derived classes), this produces more code (the branches) and more data (type fields) that have to be handled by the model checker. You can use the inheritance mechanism in C++ to do this more elegantly, as shown below:

856_polymorphism2.jpg

   Related Questions in Programming Languages

  • Q : What is Single inheritance Single

    Single inheritance: In Java, a class might not extend more than one class. It means that Java has a single inheritance model for the class inheritance.

    		•
  • Q : How Java client access Corba A Corba

    A Corba remote object exists. How could you get a Java client to access this object?

    		•
  • Q : What is an Implicit type conversion

    Implicit type conversion: The type conversion which does not need a cast. Implicit type conversions usually do not comprise any loss of information. For example, joining an integer operand with a floating point operand in an arithmetic expression will

    		•
  • Q : Learning File system with operations

    Program 1. Purpose of this assignment is to learn to work with files.Assignment: The file, data.txt, is provided on the class website. Each line of the file consists of a binary operator followed by two operands. Your program wi

    		•
  • Q : Monte Carol method to estimate pi An

    An interesting way to estimate pi can can done using Monte Carol method with minimal mathematics. Monte Carlo is known for its casinos. A Monte Carlo method uses change, or in our case, random numbers to simulate the real situation. The situation we simulate here is t

    		•
  • Q : Explain SQA personnel regarding

    Do you think that the role of SQA personnel regarding inspections or testing?

    		•
  • Q : Define Number base Number base : The

    Number base: The base employed to interpret the numerical characters. Binary notation is base 2 and decimal notation is base 10, for illustration.

    		•
  • Q : What is an Instruction set Instruction

    Instruction set: The set of instructions which characterize a specific Central Processing Unit. The programs written in the instruction set of one type of CPU can’t usually be run on any other kind of CPU.

    		•
  • Q : What is Class Selector in the CSS

    Explain what is meant by the Class Selector in the CSS?

    		•
  • Q : What is Syntax error Syntax error: It

    Syntax error: It is an error detected by the compiler throughout its parsing of a program. The syntax errors generally result from mis-ordering symbols in statements and expressions. Missing curly semicolons and brackets are general illustrations of s

    		•