Chars/String help

Hello.... I'm a little confused on how the char system works. As you can see, I started coding what I wanted to do. I'm just confused on classes like Car and Truck and how to apply them to my code. I'm pretty good when I get down to the IF statements now... however, I still can't get a grasp on the char function yet. I basically want the user to enter Car or Truck... or even 'C', 'c', 'T', 't' obviously the capital and little C equaling Car and the capital T and little t equaling Truck. Anyone know what I'm trying to say... I'm even confusing myself.

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Problem: Determine the cost of a single customer to park in the parking lot. Trucks are charged at a rate of $3/hour and cars are charged at a rate of $1.75/hr. Trucks get 1 hour of free parking and cars get 2 hours of free parking. Input the number of minutes that the vehicle parked and determine the cost. If a vehicle parks for part of an hour, we will charge them for the entire hour. Display the vehicle type, hours parked, and the fee to park in the lot.

Code:

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  /**********************************************************************
*Program Name  :    Parking Fee Receipt
*Program Description: Write a program that will determine how much a car or truck will have to pay in the  parking lot.
*
*BEGIN - Parking Fee Receipt
*  Input Vehicle Type
*  Clear the screen
*  If(Vehicle Type Is Valid)
*  Input Number Of Minutes Parked
*  Convert Minutes Parked To Hours Parked
*  If(Vehicle Type Is A Truck)
*      Calculate Cost For Truck
*      Vehicle Type = "Truck"
*  Else Vehicle Is A Car
*      Calculate Cost For Car
*      Vehicle Type = "Car"
*  End If
*  Display Receipt 
*  Else // Vehicle Type Is Invalid
*  Display Error Message
*  End If       
*END - Parking Fee Receipt
**********************************************************************/
#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
 
    //local constants
 
    const int TRUCK_RATE = 3;
    float CAR_RATE = 1.75;
    const int FREE_TRUCK = 1;
    const int FREE_CAR = 2;

    //local variables
 
    int Num_Min;
    char Veh_Type;
 
    /************************start main program************************/
 
    // Input Vehicle Type
    cout << "Car or Truck? : ";
    cin >> Veh_Type;
 
    // If The Vehicle Is Valid
    If( Veh_Type == 'C'
 
    //Clear the screen
        system("cls");

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Apart from not including your close parenthesis, what's wrong with it?

Here's an update... still not getting it :(

Code:

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/**********************************************************************
*Program Name  :    Parking Fee Receipt
*Program Description: Write a program that will determine how much a car
*or truck will have to pay in the OnCenter parking lot.
*
*BEGIN - Parking Fee Receipt
*  Input Vehicle Type
*  Clear the screen
*  If(Vehicle Type Is Valid)
*  Input Number Of Minutes Parked
*  Convert Minutes Parked To Hours Parked
*  If(Vehicle Type Is A Truck)
*      Calculate Cost For Truck
*      Vehicle Type = "Truck"
*  Else Vehicle Is A Car
*      Calculate Cost For Car
*      Vehicle Type = "Car"
*  End If
*  Display Receipt 
*  Else // Vehicle Type Is Invalid
*  Display Error Message
*  End If       
*END - Parking Fee Receipt
**********************************************************************/
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

int main()
{
   
    //local constants
   
    const int TRUCK_RATE = 3;
    const int FREE_TRUCK = 1;
    const int FREE_CAR = 2;
    const int NUM_HRS = 24;
    const int MIN_NUM = 60;
    const int TOT_MIN = 1440;
    float CAR_RATE = 1.75;
   

    //local variables
   
    int Num_Min;
    int Park_Fee;
    char Veh_Type;
   
 
   
    /************************start main program************************/
   
    // Input Vehicle Type
    cout << "Car (Capital 'C') or Truck (Capital 'D')? : ";
    cin >> Veh_Type;
   
    //Clear the screen
        system("cls");
   
    // If The Vehicle Is Valid Input Number Of Minutes Parked

    if( Veh_Type == 'C' || Veh_Type == 'D' )
{
    cout << "Enter Number Of Minutes Parked :          ";
    cin >> Num_Min;
}

    // Convert Minutes To Hours Parked
   
    if( TOT_MIN % MIN_NUM )
      NUM_HRS = Num_Min / MIN_NUM;
      NUM_HRS ++;

   
    // If Vehicle Is A Truck
   
    if(Veh_Type == 'T')
{
      (NUM_HRS - FREE_TRUCK) * TRUCK_RATE;
      cout << Veh_Type == "Truck";
}
    else
    Veh_Type = 'C';
    (NUM_HRS - FREE_CAR) * CAR_RATE
    cout << Veh_Type == "Car";
   
    // END IF


    // Display Receipt
   
      cout << setiosflags(ios::fixed | ios::showpoint) << setprecision(2);
        cout << "\n\n\n\n";
        cout << setw(56) << "Parking Receipt    " << "\n\n";
        cout << setw(43) << "Category            " << setw(9) << "Result"  << "\n\n";
        cout << setw(43) << "Hours Parked        " << setw(9) << NUM_HRS    << "\n\n";
                << setw(43) << "Vehicle Type        " << setw(9) << Veh_Type        << "\n\n";
                << setw(43) << "Fee                " << setw(9) << Park_Fee  << "\n\n";
            << "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
   
 
        //pause the output screen for viewing
    system("pause");
       
    return 0;
   
} // end if main function

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you should decide do you want 'T' or 'D' for the Track and be consistenty about it

to allow low chars use toUpper after you get the char from user

I can see four major problems here:

#1: You have set NUM_HRS as a "const int", which means it is "constant", which means it can NEVER change its value. You DO change it when you convert the minutes to hours.

#2: Your final else statement doesn't have any braces. Without these, it only performs the first line after it, which I think isn't what you want.

#3:

Code:

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(NUM_HRS - FREE_TRUCK) * TRUCK_RATE;

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does not assign to anything. In otherwords, you need to have an equals sign somewhere.

#4:

Code:

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cout << Veh_Type == "Truck";

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This will probably not do what you think. This will output either a 1 or 0 to the screen. What it is saying is "Is Veh_Type a "Truck"", and it will respond with either yes (1) or no (0).

#5: Veh_Type is a char type, meaning that it holds only ONE character. "Truck" is, at least, 5. Change Veh_Type to a std::string or char array.

Here's a rough overview of the differences between strings and chars:
Strings are WORDS or SENTENCES that can be of any length. Chars are of only one character, for example, 'A' or '6' or '%' are all a char. Chars aren't super useful, but you can have many chars in an array. An array can look like this:

Code:

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char TESTWORD[20];

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This is pretty much the same as a string, except it is limited to only 20 characters.

There are a couple of other little things... but that should be a big enough load for now.

I think I fixed the major problems. What else do I have on my plate?

Code:

---

/**********************************************************************
*Program Name  :    Parking Fee Receipt
*Program Description: Write a program that will determine how much a car
*or truck will have to pay in the OnCenter parking lot.
*
*BEGIN - Parking Fee Receipt
*  Input Vehicle Type
*  Clear the screen
*  If(Vehicle Type Is Valid)
*  Input Number Of Minutes Parked
*  Convert Minutes Parked To Hours Parked
*  If(Vehicle Type Is A Truck)
*      Calculate Cost For Truck
*      Vehicle Type = "Truck"
*  Else Vehicle Is A Car
*      Calculate Cost For Car
*      Vehicle Type = "Car"
*  End If
*  Display Receipt 
*  Else // Vehicle Type Is Invalid
*  Display Error Message
*  End If       
*END - Parking Fee Receipt
**********************************************************************/
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

int main()
{
   
    //local constants
   
    const int TRUCK_RATE = 3;
    const int FREE_TRUCK = 1;
    const int FREE_CAR = 2;
    const int MIN_NUM = 60;
    const int TOT_MIN = 1440;
    float CAR_RATE = 1.75;
    char Veh_Type[5];
    char Veh_Type[3];
   

    //local variables
   
    int Num_Min;
    int Park_Fee;
    int Num_Hrs;
   
    /************************start main program************************/
   
    // Input Vehicle Type
    cout << "Enter either Car (Capital 'C') or Truck (Capital 'D')? : ";
    cin >> Veh_Type;
   
    //Clear the screen
        system("cls");
   
    // If The Vehicle Is Valid Input Number Of Minutes Parked

    if( Veh_Type[3] == 'C' || Veh_Type[5] == 'D' )
{
    cout << "Enter Number Of Minutes Parked :          ";
    cin >> Num_Min;
}

    // Convert Minutes To Hours Parked
   
    if( TOT_MIN % MIN_NUM )
      Num_Hrs = Num_Min / MIN_NUM;
      Num_Hrs ++;

   
    // If Vehicle Is A Truck
   
    if(Veh_Type == 'T')
{
      (Num_Hrs - FREE_TRUCK) * TRUCK_RATE = Park_Fee;
     
}
    else
{
    Veh_Type = 'C';
    (NUM_HRS - FREE_CAR) * CAR_RATE = Park_Fee;
}
   
    // END IF


    // Display Receipt
   
      cout << setiosflags(ios::fixed | ios::showpoint) << setprecision(2);
        cout << "\n\n\n\n";
        cout << setw(56) << "Parking Receipt    " << "\n\n";
        cout << setw(43) << "Category            " << setw(9) << "Result"  << "\n\n";
        cout << setw(43) << "Hours Parked        " << setw(9) << Num_Hrs    << "\n\n";
                << setw(43) << "Vehicle Type        " << setw(9) << Veh_Type        << "\n\n";
                << setw(43) << "Fee                " << setw(9) << Park_Fee  << "\n\n";
            << "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
   
 
        //pause the output screen for viewing
    system("pause");
       
    return 0;
   
} // end if main function

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Quote:

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if( Veh_Type[3] == 'C' || Veh_Type[5] == 'D' )

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Quote:

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if(Veh_Type == 'T')

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Still not sure what you want, I see...

You don't nedd to declare arrays since you only need single characters.

Code:

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char Veh_Type[5];
    char Veh_Type[3];
   
//What for?

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You must first ask the user for the number of minutes used without any if statement
You want the number of minutes irrespective of being a car or truck

Code:

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cout << "Enter Number Of Minutes Parked :          ";
cin >> Num_Min;
// and then ask the user whether its a car or truck
// then calculate the number of hours
//then the parking fee

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Probably this block will never get executed

Code:

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if( TOT_MIN % MIN_NUM )
      Num_Hrs = Num_Min / MIN_NUM;
      Num_Hrs ++;

//const int MIN_NUM = 60;
//    const int TOT_MIN = 1440;
/ Now  your if ( 1440 % 60 ) which is equal to 0 or false
//Probably you were attempting to find out the nnumber of hours
//Num_Hrs = (int)Num_Min / 60
//Now if you have parked for 119 minutes or 100 minutes
//the above statement will give you Num_Hrs=1
//You have a choice of passing the benefit to your customer

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Now

Code:

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if(Veh_Type == 'T')
{
      (Num_Hrs - FREE_TRUCK) * TRUCK_RATE = Park_Fee;
      //should be
      //  Park_Fee=  (Num_Hrs - FREE_TRUCK) * TRUCK_RATE ;

}
    else //should be else if( Veh_Type == 'C')
{
 
    (NUM_HRS - FREE_CAR) * CAR_RATE = Park_Fee;
  //should be  Park_Fee=  (NUM_HRS - FREE_CAR) * CAR_RATE
}
//Now what if you enter a letter other than C or  T
//You still display the parking fee
//One thing you can do after the above 'else-if statement is'
//add another else statement
else
{
 cout << "Invalid Input" ;
  return 0;
}

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please give me full c++ coding for parking. i really need that which only use #include <stdio.h> only.

Quote:

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Originally Posted by nhm

please give me full c++ coding for parking. i really need that which only use #include <stdio.h> only.

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hhmmm.... so you pumped an old thread to ask someone to do your hw/exam/whatever for you with constrains that show you know absolutely nothing about the language. Good luck with that.