How to resolve the algorithm Classes step by step in the Ring programming language
How to resolve the algorithm Classes step by step in the Ring programming language
Table of Contents
Problem Statement
In object-oriented programming class is a set (a transitive closure) of types bound by the relation of inheritance. It is said that all types derived from some base type T and the type T itself form a class T. The first type T from the class T sometimes is called the root type of the class. A class of types itself, as a type, has the values and operations of its own. The operations of are usually called methods of the root type. Both operations and values are called polymorphic. A polymorphic operation (method) selects an implementation depending on the actual specific type of the polymorphic argument. The action of choice the type-specific implementation of a polymorphic operation is called dispatch. Correspondingly, polymorphic operations are often called dispatching or virtual. Operations with multiple arguments and/or the results of the class are called multi-methods. A further generalization of is the operation with arguments and/or results from different classes.
A polymorphic value has a type tag indicating its specific type from the class and the corresponding specific value of that type. This type is sometimes called the most specific type of a [polymorphic] value. The type tag of the value is used in order to resolve the dispatch. The set of polymorphic values of a class is a transitive closure of the sets of values of all types from that class. In many OO languages the type of the class of T and T itself are considered equivalent. In some languages they are distinct (like in Ada). When class T and T are equivalent, there is no way to distinguish polymorphic and specific values.
Create a basic class with a method, a constructor, an instance variable and how to instantiate it.
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Step by Step solution about How to resolve the algorithm Classes step by step in the Ring programming language
Source code in the ring programming language
New point { x=10 y=20 z=30 print() }
Class Point x y z func print see x + nl + y + nl + z + nl
New point # create new object using the point class
{ # access the new object attributes and methods
x = 10 # set the x attribute to 10
y = 20 # set the y attribute to 20
z = 30 # set the z attribute to 30
print() # call the print method
} # end of object access
Class Point # define the Point class
x y z # the class contains three attributes x, y & z
func print # define the print method
see x + nl + # print the x attribute
y + nl + # print the y attribute
z + nl # print the z attribute
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