Build a derived class of Vehicle for trucks

   

/*
C# A Beginner's Guide
By Schildt

Publisher: Osborne McGraw-Hill
ISBN: 0072133295
*/

/* 
  Project 8-1 
 
  Build a derived class of Vehicle for trucks. 
*/ 
using System; 
 
class Vehicle {    
  int pri_passengers; // number of passengers    
  int pri_fuelcap;    // fuel capacity in gallons   
  int pri_mpg;        // fuel consumption in miles per gallon   
   
  // This is a constructor for Vehicle.  
  public Vehicle(int p, int f, int m) {  
    passengers = p;  
    fuelcap = f;  
    mpg = m;  
  }  
 
  // Return the range.   
  public int range() {   
    return mpg * fuelcap;   
  }   
   
  // Compute fuel needed for a given distance.  
  public double fuelneeded(int miles) {   
    return (double) miles / mpg;   
  } 
 
  // Properties 
  public int passengers { 
    get { return pri_passengers; } 
    set { pri_passengers = value; } 
  }   
 
  public int fuelcap { 
    get { return pri_fuelcap; } 
    set { pri_fuelcap = value; } 
  }   
 
  public int mpg { 
    get { return pri_mpg; } 
    set { pri_mpg = value; } 
  }   
}    
  
// Use Vehicle to create a Truck specialization.    
class Truck : Vehicle {  
  int pri_cargocap; // cargo capacity in pounds  
  
  // This is a constructor for Truck.  
  public Truck(int p, int f, int m, int c) : base(p, f, m)  
  {  
    cargocap = c;  
  }  
 
  // Property for cargocap. 
  public int cargocap { 
    get { return pri_cargocap; } 
    set { pri_cargocap = value; } 
  }   
}  
    
public class TruckDemo {    
  public static void Main() {    
  
    // construct some trucks 
    Truck semi = new Truck(2, 200, 7, 44000);    
    Truck pickup = new Truck(3, 28, 15, 2000);    
    double gallons;   
    int dist = 252;   
   
    gallons = semi.fuelneeded(dist);    
    
    Console.WriteLine("Semi can carry " + semi.cargocap +  
                       " pounds."); 
    Console.WriteLine("To go " + dist + " miles semi needs " +   
                       gallons + " gallons of fuel.
");   
       
    gallons = pickup.fuelneeded(dist);    
    
    Console.WriteLine("Pickup can carry " + pickup.cargocap +  
                       " pounds."); 
    Console.WriteLine("To go " + dist + " miles pickup needs " +   
                       gallons + " gallons of fuel.");  
  }    
}