//FUNCTION :readFile
//DESCRIPTION :read content of the database.txt and generate instance according to the content. and save the instance to the arraylist.
//
//PARAMETERS :
// ref ArrayList motorcycleArry: The reference of the arrarylist save the motorcycle instances.
// ref ArrayList autoMobileArray: The reference of the arrarylist save the automobile instances.
// ref ArrayList truckArray: The reference of the arrarylist save the truck instances.
//RETURNS :void
private static void readFile(ref ArrayList motorcycleArry, ref ArrayList autoMobileArray, ref ArrayList truckArray)
{
// int motor_id = 0;
int auto_id = 0;
int truck_id = 0;
int motor_id = 0;
if (!File.Exists("Database.txt"))
{
File.Create("Database.txt").Close();
return;
}
System.IO.StreamReader file = new System.IO.StreamReader("Database.txt");
string line;
char[] delimiterChars = { '|' };
while ((line = file.ReadLine()) != null)
{
string[] words = line.Split(delimiterChars);
if (words[0] == "automobile")
{
//new instance according to the information from the database.txt file.
Automobile temp = new Automobile(words[1], words[2], Convert.ToInt32(words[3]), Convert.ToInt32(words[4]), words[5], Convert.ToInt32(words[6]), Convert.ToInt32(words[7]), Convert.ToInt32(words[8]), words[9]);
auto_id++;
//generate the vehicle id.
string strId = "AM" + auto_id;
temp.Vehicle_Id = strId;
//add a instance to the arraylist.
autoMobileArray.Add(temp);
}
else if (words[0] == "truck")
{
Truck temp = new Truck(words[1], words[2], Convert.ToInt32(words[3]), Convert.ToInt32(words[4]), words[5], Convert.ToInt32(words[6]), Convert.ToInt32(words[7]), (float)Convert.ToDecimal(words[8]), (float)Convert.ToDecimal(words[9]));
truck_id++;
string strId2 = "ST" + truck_id;
temp.Vehicle_Id = strId2;
truckArray.Add(temp);
}
else if (words[0] == "motorcycle")
{
Motorcycle temp = new Motorcycle(words[1], words[2], Convert.ToInt32(words[3]), Convert.ToInt32(words[4]), words[5], Convert.ToInt32(words[6]), Convert.ToInt32(words[7]), words[8]);
motor_id++;
string strId3 = "MC" + motor_id;
temp.Vehicle_Id = strId3;
motorcycleArry.Add(temp);
}
}
//close file
file.Close();
}
// FUNCTION NAME : validate_vehicle_data(string vehicle_type)
//
// PARAMETER : string vehicle_type: contains the type of the vehicle as a string.
//
// RETURN : void
//
// DESCRIPTION : It gets the input from the user and validates before adding to the list.
private void validate_vehicle_data(string vehicle_type)
{
//local variables.
string manufacturer="";
string model="";
string model_year="";
string initial_purchase_price="";
string purchase_date="";
string current_odometer="";
string size_of_engine="";
string type_of_motorcycle="";
string number_of_doors="";
string type_of_fuel="";
string cargo_capacity="";
string towing_capacity="";
string vehicle_id = "";
int m_year = 0, i_purchase_price=0, odometer=0, s_engine=0, n_doors=0, c_capacity=0, t_capacity = 0;
//if validation fails , then it will be used to ask again.
bool ask_again = true;
//get the manufacturer from the user.
while (ask_again)
{
System.Console.Write("Enter the manufacturer\t\t : ");
manufacturer = System.Console.ReadLine();
//validate the data in other function which returns the bool value to ask again or not from the user.
ask_again = validate_string(manufacturer);
}
//get the vehicle model from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the vehicle model\t\t : ");
model = System.Console.ReadLine();
//validate the data in other function which returns the bool value to ask again or not from the user.
ask_again= validate_as_num_aplha(model);
}
//get the vehicle model year from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the vehicle model year\t : ");
model_year = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(model_year, ref m_year);
}
//get the initial purchase price of motorcycle from the user.
if (vehicle_type == "motorcycle")
{
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the initial purchase price \n\t (minimum value is $1500 ) : ");
initial_purchase_price = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(initial_purchase_price, ref i_purchase_price);
//compare it with minimum value.
if (i_purchase_price < 1500)
{
Console.WriteLine("\t\t\t( ERROR - Enter a value greater than $1500... )\n");
ask_again = true;
}
}
}
//get the initial purchase price of automobile from the user.
if (vehicle_type == "automobile")
{
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the initial purchase price \n\t (minimum value is $500 ) : ");
initial_purchase_price = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(initial_purchase_price, ref i_purchase_price);
//compare it with minimum value.
if(i_purchase_price < 500)
{
Console.WriteLine("\t\t\t( ERROR - Enter a value greater than $500... )\n");
ask_again = true;
}
}
}
//get the initial purchase price of truck from the user.
if (vehicle_type == "truck")
{
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the initial purchase price\n\t(minimum value is $0 )\t : ");
initial_purchase_price = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(initial_purchase_price, ref i_purchase_price);
//compare it with minimum value.
if (i_purchase_price < 0)
{
Console.WriteLine("\t\t\t( ERROR - Enter a value greater than $0... )\n");
ask_again = true;
}
}
}
//get the initial purchase date of vehicle from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the purchase date\t\t : ");
purchase_date = System.Console.ReadLine();
//validate the data as datetime type in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_date_time(purchase_date);
}
//get the odometer reading of vehicle from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the current odometer reading : ");
current_odometer = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(current_odometer, ref odometer);
}
//get the size of engine of vehicle from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the size of engine\t : ");
size_of_engine = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(size_of_engine,ref s_engine);
}
//get the type of motorcycle from the user.
if (vehicle_type == "motorcycle")
{
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the type of motorcycle \t : ");
type_of_motorcycle = System.Console.ReadLine();
//validate the data as string in other function which returns the bool value to ask again or not from the user.
ask_again = validate_string(type_of_motorcycle);
}
//concatenate the motorcycle id to the vehicle id.
vehicle_id = "MC" + motorcycle_id;
//create an instance of motorcycle and call the constructor to store the data in the properties.
Motorcycle obj = new Motorcycle(manufacturer,model,m_year,i_purchase_price,purchase_date,odometer,s_engine,type_of_motorcycle);
//calls the accessor method of vehicle id property to set it a value.
obj.Vehicle_Id = vehicle_id;
//add the motorcycle object in list.
list_motorcycle.Add(obj);
}
if(vehicle_type=="automobile")
{
//get the number of doors from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the number of doors(2,3, or 5): ");
number_of_doors = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(number_of_doors, ref n_doors);
//number of doors has to be between 2-5.
if(n_doors >=2 && n_doors<=5)
{
ask_again = false;
}
else
{
Console.WriteLine("\n\t\t\t( ERROR - Number of doors can be 2,3,4 or 5...)");
ask_again = true;
}
}
//get the type of fuel from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the type of fuel\t\t : ");
type_of_fuel = System.Console.ReadLine();
ask_again = validate_string(type_of_fuel);
if( (string.Compare(type_of_fuel, "Electric", true) == 0) || (string.Compare(type_of_fuel, "Diesel", true)==0) || (string.Compare(type_of_fuel, "Gas", true) == 0))
{
ask_again = false;
}
else
{
Console.WriteLine("\n\t\t\t(ERROR - Fuel type can be Electric,Diesel or Gas... )\n");
ask_again = true;
}
}
//concatenate the motorcycle id to the vehicle id.
vehicle_id = "AM" + automobile_id;
//create an instance of automobile and call the constructor to store the data in the properties.
Automobile obj1 = new Automobile(manufacturer,model,m_year,i_purchase_price,purchase_date,odometer,s_engine,n_doors,type_of_fuel);
//calls the accessor method of vehicle id property to set it a value.
obj1.Vehicle_Id = vehicle_id ;
//add the automobile object in list.
list_automobile.Add(obj1);
}
if(vehicle_type=="truck")
{
//get the cargo capacity from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the cargo capacity\t : ");
cargo_capacity = System.Console.ReadLine();
//validate the data as int in other function which returns the bool value to ask again or not from the user.
ask_again = validate_as_int(cargo_capacity, ref c_capacity);
}
//get the towing capacity from the user.
ask_again = true;
while (ask_again)
{
System.Console.Write("Enter the towing capacity\t : ");
towing_capacity = System.Console.ReadLine();
ask_again = validate_as_int(towing_capacity, ref t_capacity);
}
//concatenate the truck id to the vehicle id.
vehicle_id = "ST" + truck_id;
//create an instance of truck and call the constructor to store the data in the properties.
Truck obj2 = new Truck(manufacturer, model, m_year, i_purchase_price,purchase_date, odometer, s_engine,c_capacity,t_capacity);
//calls the accessor method of vehicle id property to set it a value.
obj2.Vehicle_Id = vehicle_id;
//add the automobile object in list.
list_truck.Add(obj2);
}
}