C# 0 The Complete Reference

Floors

,

Area

, and 

Occupants

, and 

the contents of these can (and often will) differ between the two objects. The following 

program demonstrates this fact:

// 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.

class BuildingDemo {

  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:\n  " +

                      house.Floors + " floors\n  " +

                      house.Occupants + " occupants\n  " +

                      house.Area + " total area\n  " +

                      areaPP + " area per person");

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    Console.WriteLine();

    // Compute the area per person in office.

    areaPP = office.Area / office.Occupants;

    Console.WriteLine("office has:\n  " +

                      office.Floors + " floors\n  " +

                      office.Occupants + " occupants\n  " +

                      office.Area + " total area\n  " +

                      areaPP + " area per person");

  }

}

The output produced by this program is shown here:

house has:

  2 floors

  4 occupants

  2500 total area

  625 area per person

office has:

  3 floors

  25 occupants

  4200 total area

  168 area per person

As you can see,