CLASSES AND OBJECTS Class Computer Programming In objectoriented
CLASSES AND OBJECTS Class Computer Programming In object-oriented programming, a class is an extensible programcode-template for creating objects, providing initial values for state (member variables) and implementations of behavior (member functions or methods). In many languages, the class name is used as the name for the class (the template itself), the name for the default constructor of the class (a subroutine that creates objects), and as the type of objects generated by instantiating the class; these distinct concepts are easily conflated.
OBJECTS DEFINITION - WHAT DOES OBJECT MEAN? OBJECT, IN C#, IS AN INSTANCE OF A CLASS THAT IS CREATED DYNAMICALLY. OBJECT IS ALSO A KEYWORD THAT IS AN ALIAS FOR THE PREDEFINED TYPE SYSTEM. OBJECT IN THE. NET FRAMEWORK. THE UNIFIED TYPE SYSTEM OF C# ALLOWS OBJECTS TO BE DEFINED. THESE CAN BE USER-DEFINED, REFERENCE OR VALUE TYPE, BUT THEY ALL INHERIT DIRECTLY OR INDIRECTLY FROM SYSTEM. OBJECT. THIS INHERITANCE IS IMPLICIT SO THAT THE TYPE OF THE OBJECT NEED NOT BE DECLARED WITH SYSTEM. OBJECT AS THE BASE CLASS. IN GENERAL, OBJECT TYPE IS USEFUL WHERE THERE IS A REQUIREMENT TO BUILD GENERIC ROUTINES. BECAUSE VALUES OF ANY TYPE CAN BE ASSIGNED TO VARIABLES OF OBJECT TYPE, OBJECT TYPE IS USED MOSTLY IN DESIGNING CLASSES THAT HANDLE OBJECTS OF ANY TYPE THAT ALLOW CODE TO BE REUSED. THE NON-GENERIC COLLECTION CLASSES IN THE. NET FRAMEWORK LIBRARY, SUCH AS ARRAYLIST, QUEUE, ETC. , USE OBJECT TYPE TO DEFINE VARIOUS COLLECTIONS. AN OBJECT IS ALSO KNOWN AS INSTANCE.
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