Shailendra Chauhan
06
JunC# is developed by microsoft and comes after C, C++, Java. It inherits the properties of C, C++, Java, VB. We can say C# is smart and intelligent sister of Java because it do work smartly in comprasion to Java. The basic concept of C# language are same as C, C++ to whom you have learnt in C, C++ tutorials. The advance concept of C# language are as :
Object
Object is representative of the class and is responsible for memory allocation of its data members and member functions. An object is a real world entity having attributes (data type) and behaviors (functions).
Class
Class is a data structure that contains data members (constants files, events), member function methods, properties, constructor, destructor, indexers and nested type.
It is a user defined data type.
It is a reference type.
Infact class is a tag or template for object.
Drawback of Class
Class does not allocate memory to its data members & member function itself. Basically memory is allocated through object of a class. Class can’t explore itself means it can not access its members itself, to access members of a class we use object of that class.
Example :
// Namespace Declaration
using System;
// helper class
class ClassA
{
string myString;
// Constructor
public ClassA(string str)
{
myString = str;
}
// Instance Method
public void Show()
{
Console.WriteLine("{0}", myString);
}
// Destructor
~ClassA()
{
// Some resource cleanup routines
}
}
// Program start class
class ClassProgram
{
// Main begins program execution
public static void Main()
{
// Instance of ClassA
ClassA objA = new ClassA("Welcome to the world of C# language !!");
// Call ClassA method
objA.Show();
}
}
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