using System;

public class ASimpleClass
{
    public static void Main()
    {
        Point myPoint = new Point(10, 15);
        Console.WriteLine("myPoint.x {0}", myPoint.x);
        Console.WriteLine("myPoint.y {0}", myPoint.y);
    }
}
class Point
{
    // constructor
    public Point(int x, int y)
    {
        this.x = x;
        this.y = y;
    }
    
    // member fields
    public int x;
    public int y;
}



           
          

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/
/*
  Example16_3b.cs uses a class from Example16_3a.cs
*/

using System;
using StringSwitch;  // name space define in Example16_3c.cs

public class Example16_3b 
{

  public static void Main() 
  {
    string localString;
    MySwitch s = new MySwitch();
    s.inString="abcdef";
    s.upper(out localString);
    Console.WriteLine(localString);
  }

}

//===========================================================
/*
  Example16_3c.cs provides manifest information for Example 16_3
*/

using System.Reflection;

[assembly: AssemblyTitle("Example 16.3")]
[assembly: AssemblyVersion("1.0.0.0")]


//===========================================================
/*
  Example16_3a.cs creates a namespace with a single class
*/

using System;

namespace StringSwitch
{
  class MySwitch 
  {
    string privateString;

    public string inString 
    {
      get 
      {
        return privateString;
      }
      set
      {
        privateString = value;
      }
    }

    public void upper(out string upperString)
    {
      upperString = privateString.ToUpper();
    }

  }
}





           
          

   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Return an object. 
 
using System; 
 
class Rect { 
  int width; 
  int height; 
 
  public Rect(int w, int h) { 
    width = w; 
    height = h; 
  } 
 
  public int area() { 
    return width * height; 
  } 
 
  public void show() { 
    Console.WriteLine(width + " " + height); 
  } 
 
  /* Return a rectangle that is a specified 
     factor larger than the invoking rectangle. */ 
  public Rect enlarge(int factor) { 
    return new Rect(width * factor, height * factor); 
  } 
} 
  
public class RetObj { 
  public static void Main() {   
    Rect r1 = new Rect(4, 5); 
 
    Console.Write("Dimensions of r1: "); 
    r1.show(); 
    Console.WriteLine("Area of r1: " + r1.area()); 
 
    Console.WriteLine(); 
 
    // create a rectange that is twice as big as r1 
    Rect r2 = r1.enlarge(2); 
 
    Console.Write("Dimensions of r2: "); 
    r2.show(); 
    Console.WriteLine("Area of r2 " + r2.area()); 
  } 
}


           
          

   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// This program creates two Building objects. 
 
  
using System;  
  
class Building {   
  public int floors;    // number of floors 
  public int area;      // total square footage of building 
  public int occupants; // number of occupants 
}   
   
// This class declares two objects of type Building.   
public class BuildingDemo1 {   
  public static void Main() {   
    Building house = new Building();   
    Building office = new Building(); 
 
    int areaPP; // area per person 
   
    // assign values to fields in house 
    house.occupants = 4;  
    house.area = 2500;  
    house.floors = 2;  
 
    // assign values to fields in office 
    office.occupants = 25;  
    office.area = 4200;  
    office.floors = 3;  
   
    // compute the area per person in house 
    areaPP = house.area / house.occupants;  
   
    Console.WriteLine("house has:
  " + 
                      house.floors + " floors
  " + 
                      house.occupants + " occupants
  " + 
                      house.area + " total area
  " + 
                      areaPP + " area per person"); 
 
    Console.WriteLine(); 
 
    // compute the area per person in office 
    areaPP = office.area / office.occupants;  
 
    Console.WriteLine("office has:
  " + 
                      office.floors + " floors
  " + 
                      office.occupants + " occupants
  " + 
                      office.area + " total area
  " + 
                      areaPP + " area per person"); 
  }   
} 

           
          

   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// A program that uses the Building class.   
 
using System;  
  
class Building {   
  public int floors;    // number of floors 
  public int area;      // total square footage of building 
  public int occupants; // number of occupants 
}   
   
// This class declares an object of type Building.   
public class BuildingDemo {   
  public static void Main() {   
    Building house = new Building(); // create a Building object 
    int areaPP; // area per person 
   
    // assign values to fields in house 
    house.occupants = 4;  
    house.area = 2500;  
    house.floors = 2;  
   
    // compute the area per person 
    areaPP = house.area / house.occupants;  
   
    Console.WriteLine("house has:
  " + 
                      house.floors + " floors
  " + 
                      house.occupants + " occupants
  " + 
                      house.area + " total area
  " + 
                      areaPP + " area per person"); 
  }   
}

           
          

   

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/
 using System;

 public class MyTime
 {
     // private variables
     private int year;
     private int month;
     private int date;
     private int hour;
     private int minute;
     private int second;

     // public methods
     public void DisplayCurrentMyTime()
     {
         Console.WriteLine(
             "stub for DisplayCurrentMyTime");
     }
 }

 public class Tester
 {
     static void Main()
     {
         MyTime timeObject = new MyTime();
         timeObject.DisplayCurrentMyTime();
     }

 }

           
          

   

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/
 using System;

 namespace heap
 {
     public class Dog
     {
         public int weight;
     }

    public class TesterClass
    {
       public void Run()
       {
           // create an integer
           int firstInt = 5;

           // create a second integer
           int secondInt = firstInt;

           // display the two integers
           Console.WriteLine("firstInt: {0} secondInt: {1}",
               firstInt, secondInt);

           // modify the second integer
           secondInt = 7;

           // display the two integers
           Console.WriteLine("firstInt: {0} secondInt: {1}",
               firstInt, secondInt);

           // create a dog
           Dog milo = new Dog();

           // assign a value to weight
           milo.weight = 5;

           // create a second reference to the dog
           Dog fido = milo;

           // display their values
           Console.WriteLine("Milo: {0}, fido: {1}",
               milo.weight, fido.weight);

           // assign a new weight to the second reference
           fido.weight = 7;

           // display the two values
           Console.WriteLine("Milo: {0}, fido: {1}",
               milo.weight, fido.weight);
       }

       static void Main()
       {
          TesterClass t = new TesterClass();
          t.Run();
       }
    }
 }