project .... help plz plz plz

I'm in college and I have to do a project and i couldn't do it.

Create a program which deals with Car Rental Services. You can base your program on the following menu

Code:

---


*******************************************************

WELCOME TO MYCAR RENTAL SYSTEM

*******************************************************

[A] ADD CAR RENTAL INFORMATION

[D] DELETE CAR RENTAL INFORMATION

[V] VIEW CAR RENTAL INFORMATION

[I] INCREASE RENTING RATE

[P] VIEW RENTAL SERVICE RECEIPT

[Q] QUIT RENTAL SYSTEM

*******************************************************

---

Could someone help me please

Show us what code you have written so far for this program.

Welcome to the forum, Hitchhik3R! :)

Maybe call a menu() function from main, print the menu choices, and have a switch statement to handle each choice. menu function has everything in a big do while(choice != 0) loop, so it keeps coming back to the menu for another choice for the user.

Post up some code, and show us you're serious.

Adak
trust me im serious ... if i couldnt find how to do it i will loss 20%

Swarvy

I didn't writ anything at all coz in the whole semester we didn't study anything like that

and the lecturer said we will not find the way in the notes so we have to search in the internet

I will show u what did we study

examples:

1

Code:

---

#include<stdio.h>
main ( )
{
int age=44,workexp=5;
float salary=1800.00;
char gender='M';

printf("Ali's age is %d\n",age);
printf("He has %d years working experience\n",workexp);
printf("He is earning RM %.2f this month\n",salary);
printf("His gender code is %c",gender);

return 0;
}

---

2

Code:

---

#include<stdio.h>
main()
{
int x=-4443;
float y=554.21;
char c='M';

printf("The value of integer variable x is %d",x);
printf("\nThe value of float variable y is %f",y);
printf("\nThe value of character variable c is %c",c);
return 0;
}

---

3

Code:

---

#include<stdio.h>
main()
{
int x=-4443;
float y=554.21;


printf("x is %d and y is %f",x,y);
printf("\n==> c is M Thank you");

return 0;
}

---

4

Code:

---

#include<stdio.h>
main()
{
char n[10];
char p[20];
char m[11];
int s;
float g;

printf("Enter your name          :");
scanf("%s",&n);
printf("Enter your matric no      :");
scanf("%s",&m);
printf("Enter your semester      :");
scanf("%d",s);
printf("Enter your program        :");
scanf("%s",&p);
printf("\nEnter your subject 1 grade point      :");
printf("\nEnter your subject 1 credit          :");
printf("\nEnter your subject 2 grade point      :");
printf("\nEnter your subject 2 credit          :");
printf("\nEnter your subject 3 grade point      :");
printf("\nEnter your subject 3 credit          :");
printf("\nEnter your subject 4 grade point      :");
printf("\nEnter your subject 4 credit          :");
printf("\nEnter your subject 5 grade point      :");
printf("\nEnter your subject 5 credit          :");
printf("\nEnter your subject 6 grade point      :");
printf("\nEnter your subject 6 credit          :");
printf("\nEnter your subject 7 grade point      :");
printf("\nEnter your subject 7 credit          :");

printf("\n**************************************************");
printf("\n\t\tExam Result Slip");
printf("\n\t\t    Semester");
printf("\n\t  Diploma In Civil Engineering");
printf("\n--------------------------------------------------");
printf("\nA");
printf("\n--------------------------------------------------");
printf("\nTotal credits  :");
printf("\nGPA            :");
printf("\n**************************************************");


return 0;
}

---

5

Code:

---

#include<stdio.h>
main()
{
float a;
printf("Monthly Salary    :RM");
scanf("%f",&a);
printf("Your Bonus for Year 2005 is RM%.2f",0.75*a);
return 0;
}

---

6

Code:

---

#include<stdio.h>
main()
{
int s;
printf("Enter a number:  ");
scanf("%d",&s);
printf("\n1 x %d = %d\n",s,1*s);
printf("2 x %d = %d\n",s,2*s);
printf("3 x %d = %d\n",s,3*s);
printf("4 x %d = %d\n",s,4*s);
printf("5 x %d = %d\n",s,5*s);
printf("6 x %d = %d\n",s,6*s);
printf("7 x %d = %d\n",s,7*s);
printf("8 x %d = %d\n",s,8*s);
printf("9 x %d = %d\n",s,9*s);
printf("10 x %d = %d\n",s,10*s);
printf("11 x %d = %d\n",s,11*s);
printf("12 x %d = %d",s,12*s);
return 0;
}

---

7

Code:

---

#include<stdio.h>
main()
{
float a,b;
printf("**Kentucky Restaurant**");
printf("\n\nTotal Amount    :RM");
scanf("%f",&a);
printf("Paid Amount    :RM");
scanf("%f",&b);
printf("Balance        :RM%.2f\n",b-a);
printf("\n  **Thank you**");
printf("\n  Welcome Again");
return 0;
}

---

8

Code:

---

#include<stdio.h>
main()
{
char z,d[12];
int n,r;
float f;
printf("Enter unite letter          :");
scanf("%c",&z);
printf("Enter item number          :");
scanf("%d",&n);
printf("Enter item price            :");
scanf("%f",&f);
printf("Enter number of units sold  :");
scanf("%d",&r);
printf("Enter purchase date        :");
scanf("%s",d);
printf("\nUnit    Itme    Total Purchase  Purchase Date");
printf("\n----    ----    --------------  -------------");
printf("\n%c",z);
printf("\t  %d",n);
printf("\t    $%.2f",f*r);
printf("\t  %s",d);
return 0;
}

---

9

Code:

---

#include<stdio.h>
main()
{
int a[15],b,c,d,h;
float e,f,g;
char z;
printf("*PUAS SDN BHD*\n");

printf("\nMonth          :");
scanf("%s",&a);
printf("\nMeter Reading  :-");
printf("\nPrevious      :");
scanf("%d",&c);
printf("\nCurrent        :");
scanf("%d",&d-c);
printf("\nMonthly Bill Charge for July 2005 :RM%.2f");
scanf("%f",&e);
printf("Previous Bill  :RM%.2f");
scanf("%f",&f);
printf("\nTotal Charge:RM");
scanf("%f",&g);

return 0;

---

OK, well - hint, hint, << read between the lines a bit >>

Quote:

---

Maybe call a menu() function from main, print the menu choices, and have a switch statement to handle each choice. menu function has everything in a big do while(choice != 0) loop, so it keeps coming back to the menu for another choice for the user.

Post up some code, and show us you're serious.

---

Remove the "maybe" and post up THAT code, for starters.

Oh crap, you don't have any function calls in your classwork yet?

So you haven't learnt decision making(if else ) ,loop, function,array?!

There is a fair bit of code there given the scope of the problem.

Btw, Hitchhik3R, when I made my previous post about posting code I didn't intend any offense. If you took offense then I apologise.

Anyway, now you have posted code time to get to work. By looking at your code you have learnt how to print things to screen and take in user input but you need to learn about loops, if statements (and switch statements), and functions in order to complete this assignment.

There are three types of loops, 'while' loops, 'for' loops and 'do-while' loops. You can read up on them here. The 'do-while' loop would probably be the thing you would put your menu function and selection code in since you will definitely be executing this at least once.

Your basic menu selection could (there is more than one way to skin a cat) look something like this:

Code:

---

int main()
{
        /* Starting code, maybe do some command line stuff, who knows */

      do
      {
              PrintMenu();

              /* Take user input and assess what to do with it */
        } while( !quit );
      return 0;
}

void PrintMenu()
{
        /* Clear the screen */
        /* Put all your printf statements here for printing out the main menu */
}

---

I'll let someone else explain some of the other basics, although I am surprised your lecturer would set such an assignment without giving you the proper tuition. That definitely raises a few questions.

Ok, so in main() you want to:

call a function:menu();

Code:

---

void menu(void) {
  char choice;
  double rate;  //what's the starting rate?

  do  loop
    which prints your menu choices
    gets your choice.
    scanf("%c", &choice);
    getchar();  //remove the newline char from the keyboard buffer
    takes action based on your choice (including quit the program)

    if(choice=='A') {
      //logic to handle choice A, in here   
    }
    else if(choice=='V') {
      logic for choice V


    }
  //etc. for all the choices on the menu

  }while (choice != 'Q')

---

thanx guys for ur help .... i have final exam tomorrow so i will be back after the exam to see ur posts :)

hi guys... sorry i was busy with my final exams... and still have to submit my project :)

someone helped me for my project ... but still errors :(

this s what i have written so far

Code:

---

#include<stdio.h>
void addcar(),deletecar(),viewcar(),rate(),viewrental(),quit();
char name,address,model,plate,licence,date1,date2;
int ic,contact,day;
float price;

main()
{
char select;

x:
printf("**********************************************\n");
printf("\n\tWELCOME TO MYCAR RENTAL SYSTEM\n\n");
printf("**********************************************\n");
printf("\n[A] ADD CAR RENTAL INFORMATION ");
printf("\n[D] DELETE CAR RENTAL INFORMATION ");
printf("\n[V] VIEW CAR RENTAL INFORMATION ");
printf("\n[I] INCREASE RENTING RATE");
printf("\n[P] VIEW RENTAL SYSTEM RECEIPT ");
printf("\n[Q] QUIT RENTAL SYSTEM \n\n");
printf("*********************************************\n");
printf("Select a menu: ");
scanf("%s",&select);

if(select=='A'||select=='a')
addcar();
else
if(select=='D'||select=='d')
deletecar();
if(select=='V'||select=='v')
viewcar();
else
if(select=='I'||select=='i')
rate();
else
if(select=='P'||select=='p')
viewrental();
else
if(select=='Q'||select=='q')
quit();
else
if(select!='Q'||select!='q')
goto x;

return 0;
}

void addcar()
{

printf("Name : ");
scanf(" %[^\n]",&name);
printf("IC no: ");
scanf("%d",&ic);
printf("Contact no: ");
scanf("%d",&contact);
printf("Address no: ");
scanf(" %[^\n]",&address);
printf("Car Model : ");
scanf(" %[^\n]",&model);
printf("car plate  no: ");
scanf(" %[^\n]",&plate);
printf("Licence: ");
scanf(" %[^\n]",&licence);
printf("Rental price: ");
scanf("%f",&price);
printf("Date rented: ");
scanf(" %[^\n]",&date1);
printf("Date reterned  : ");
scanf(" %[^\n]",&date2);

}
void deletecar()
{
printf("testing");
}
void viewcar()
{

printf("Name : %s\n",name);
printf("IC no : %d\n",ic);
printf("Contact no : %d\n",contact);
printf("Address  : %s\n",address);
printf("Car model : %s\n",model);
printf("Car plate no: %s\n",plate);
printf("Licence no : %s\n",licence);
printf("Rental price : %.2f\n",price);
printf("Date rented : %s\n",date1);
printf("Date returned : %s\n",date2);
}
void rate()
{
printf("Extra %10 from the rental price will be charged for evey extra rental day\n");
printf("How many extra day(s): ");
scanf("%d",&day);
printf("The total charge is %.2f+ %.2f =%.2f",price,price*0.1,price+(price*0.1));

}
void viewrental()
{
printf("**********************************************\n");
printf("MYCAR RENTAL\n");
printf("**********************************************\n");
printf("Name  : %s\n ",name);
printf("IC no : %d\n ",ic);
printf("Contact no : %d\n",contact);
printf("Address  : %s\n",address);
printf("Car model : %s\n",model);
printf("Car plate no: %s\n",plate);
printf("Licence no : %s\n",licence);
printf("Rental price : %.2f\n",price);
printf("Date rented : %s\n",date1);
printf("Date returned : %s\n",date2);
printf("Thabnk You!\n");
printf("Please come again. :)");

}
void quit()
{
printf("testing");
}

---

can someone fix the errors plz?

actually there is no errors but when i add the car rental information i cant view them and show me error message

Oh my goodness... so many problems!
First off: INDENT. Don't do ANYTHING else until you've indented.

>>void addcar(),deletecar(),viewcar(),rate(),viewrental() ,quit();
What is this?

>>main()
Where is the return type for main?

>>char select;
>>scanf("%s",&select);
Why do you think this works?

Why are you using goto?

And choose a better thread title next time!

Quote:

---

Originally Posted by Elysia

Oh my goodness... so many problems!
First off: INDENT. Don't do ANYTHING else until you've indented.

>>void addcar(),deletecar(),viewcar(),rate(),viewrental() ,quit();
What is this?

>>main()
Where is the return type for main?

>>char select;
>>scanf("%s",&select);
Why do you think this works?

Why are you using goto?

And choose a better thread title next time!

---

i really dont know much... im not the one who did that ... i asked someone to do it and he gave me this code to continue doing the code but i couldnt..

Then you shouldn't be using the code.