Declare class and use it : Class Definition « Class Interface « C# / C Sharp

Declare class and use it

 
/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
using System; 
 
class Rect { 
  public int width; 
  public int height; 
 
  public Rect(int w, int h) { 
    width = w; 
    height = h; 
  } 
 
  public int area() { 
    return width * height; 
  } 
} 
  
public class UseRect { 
  public static void Main() {   
    Rect r1 = new Rect(4, 5); 
    Rect r2 = new Rect(7, 9); 
 
    Console.WriteLine("Area of r1: " + r1.area()); 
 
    Console.WriteLine("Area of r2: " + r2.area()); 
 
  } 
}

1.	simulate a bank account
2.	Using Initializers
3.	A simple inventory example
4.	Declaring and Defining Classes
5.	Declaring Class Instances
6.	Assign value to class
7.	Illustrates how to declare classes, object references, and create objects
8.	Illustrates how to assign default values to fields using initializers
9.	illustrates how to use a 'has a' relationship
10.	Illustrates nested classes
11.	Multiple constructors in a class definition
12.	Demonstrate the use of a nested class to contain data
13.	Show name hiding in a derived class
14.	Illustrates hiding
15.	Variable in and out a class
16.	Create class
17.	A program that uses the Building class
18.	This program creates two Building objects
19.	Return an object
20.	Uses a class from Example16_3a.cs
21.	A Simple C# Class
22.	Persons Info class
23.	Message class
24.	Point class

Declare class and use it : Class Definition « Class Interface « C# / C Sharp

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