title: Vending Machine Project
body: <p>I need help to write this program I am fairly new to C and C++. Please help me get started. I don't know where to start but I'm trying my best. I need to write a vending machine program. </p>
  
  <ol>
  <li>Display a list of drinks on the screen</li>
  <li>Allow the user to either quit or pick a drink</li>
  <li>If the user picks a drink, he or she will then enter the amount of money to be inserted into the machine   </li>
  </ol>
  
  
  
  <pre><code>#include&lt;stdio.h&gt;
  #define system
  
  void menu(void);
  void chocolate(void);
  void price(void);
  void change(void);
  void end(void);
  
  
  int choc[10]={0,1,2,3,4,5,6,7,8,9};
  
  
  int main()
  {
   int intro;
   int option;
   int choice;
   int money;
   int payment;
  
  e: menu();
  
   printf("Enter Your Option: ");
   scanf("%d",&amp;intro);
   printf("\n");
  
   if(intro==1)
   {
  
  w:  printf("The Chocolates\n\n");
    printf("1.Choose Chocolate\n");
    printf("2.View A Price To Be Paid\n");
    printf("3.Back To Main Menu\n\n");
  
    printf("Rules: Machine can only receive RM1 and RM5 only! \n\n\n");
  
    printf("Enter Your Option: ");
    scanf("%d",&amp;option);
    printf("\n\n");
  
    if(option==1)
    {
     system("cls");
     printf("Name list of chocolate: ");
     printf("\n\n");
     printf("1. Cadburry Black Forest");          printf("\tRM3.00\n");
     printf("2. Kitkat");                         printf("\t\t\tRM2.00\n");
     printf("3. Crispy");                         printf("\t\t\tRM2.00\n");
     printf("4. Crunch");                         printf("\t\t\tRM2.00\n");
     printf("5. Mars");                           printf("\t\t\tRM2.00\n");
     printf("6. Kinder Bueno");                   printf("\t\tRM2.00\n");
     printf("7. White Kinder Bueno");             printf("\t\tRM2.00\n");
     printf("8. Milky Bar");                      printf("\t\t\tRM2.00\n");
     printf("9. M&amp;M");                            printf("\t\t\t\tRM2.00\n");
     printf("10. Choki Choki");                    printf("\t\t\tRM2.00\n");
     printf("\n\n");
  
     printf("Choose Chocolate: ");
     scanf("%d",&amp;choice);
     printf("\n\n");
  
     switch(choice)
     {
      case 0 :
       chocolate();
       printf("You choose Cadburry Black Forest\n\n");
       goto w;
      case 1 :
       chocolate();
       printf("You choose Kitkat\n\n");
       goto w;
      case 2 :
       chocolate();
       printf("You choose Crispy\n\n");
       goto w;
      case 3 :
       chocolate();
       printf("You choose Crunch\n\n");
       goto w;
      case 4 :
       chocolate();
       printf("You choose Mars\n\n");
       goto w;
      case 5 :
       chocolate();
       printf("You choose Kinder Bueno\n\n");
       goto w;
      case 6 :
       chocolate();
       printf("You choose White Kinder Bueno\n\n");
       goto w;
      case 7 :
       chocolate();
       printf("You choose Milky Bar\n\n");
       goto w;
      case 8 :
       chocolate();
       printf("You choose M&amp;M\n\n");
       goto w;
      case 9 :
       chocolate();
       printf("You choose Choki Choki\n\n");
       goto w;
  
      default : goto e;
     }
    }
    else if(option==2)
    {
     printf("View A Price To Be Paid: ");
     scanf("%d",&amp;choice);
     printf("\n\n");
  
     switch(choice)
     {
      case 0 :
       price();
       printf("RM3.00\n\n");
       goto w;
      case 1 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 2 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 3 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 4 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 5 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 6 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 7 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 8 :
       price();
       printf("RM2.00\n\n");
       goto w;
      case 9 :
       price();
       printf("RM2.00\n\n");
       goto w;
  
       default : goto e;
     }
    }
    else
     goto e;
   }
  
   else if(intro==2)
   {
    printf("Enter your money: ");
    scanf("%d",&amp;money);
    printf("\n\n");
  
     if(choice==0)
     {
      printf("Your payment is RM3");
      printf("\n\n");
      choc[0]=payment;
      goto e;
     }
     if(choice==1)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[1]=payment;
      goto e;
     }
     if(choice==2)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[2]=payment;
      goto e;
     }
     if(choice==3)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[3]=payment;
      goto e;
     }
     if(choice==4)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[4]=payment;
      goto e;
     }
     if(choice==5)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[5]=payment;
      goto e;
     }
     if(choice==6)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[6]=payment;
      goto e;
     }
     if(choice==7)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[7]=payment;
      goto e;
     }
     if(choice==8)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[8]=payment;
      goto e;
     }
     if(choice==9)
     {
      printf("Your payment is RM2");
      printf("\n\n");
      choc[9]=payment;
      goto e;
     }
     else
     {
      printf("ERROR!\n\n");
      goto e;
     }
   }
  
   else if(intro==3)
   {
   change();
   goto e;
   }
  
   else if(intro==4)
   {
    printf("Enjoy it!");
  
     if(choice==0)
     {
      printf("Thank you and enjoy your Cadburry Black Forest!");
      printf("\n\n");
      choc[0]=0;
      goto e;
     }
     if(choice==1)
     {
      printf("Thank you and enjoy your Kitkat!");
      printf("\n\n");
      choc[1]=0;
      goto e;
     }
     if(choice==2)
     {
      printf("Thank you and enjoy your Crispy!");
      printf("\n\n");
      choc[2]=0;
      goto e;
     }
     if(choice==3)
     {
      printf("Thank you and enjoy your Crunch!");
      printf("\n\n");
      choc[3]=0;
      goto e;
     }
     if(choice==4)
     {
      printf("Thank you and enjoy your Mars!");
      printf("\n\n");
      choc[4]=0;
      goto e;
     }
     if(choice==5)
     {
      printf("Thank you and enjoy your Kinder Bueno!");
      printf("\n\n");
      choc[5]=0;
      goto e;
     }
     if(choice==6)
     {
      printf("Thank you and enjoy your White Kinder Bueno!");
      printf("\n\n");
      choc[6]=0;
      goto e;
     }
     if(choice==7)
     {
      printf("Thank you and enjoy your Milky Bar!");
      printf("\n\n");
      choc[7]=0;
      goto e;
     }
     if(choice==8)
     {
      printf("Thank you and enjoy your M&amp;M!");
      printf("\n\n");
      choc[8]=0;
      goto e;
     }
     if(choice==9)
     {
      printf("Thank you and enjoy your Choki Choki!");
      printf("\n\n");
      choc[9]=0;
      goto e;
     }
     else
     {
      printf("Error! Try Again.\n\n");
      goto e;
     }
   }
    else
    end();
  
  }
  
  void menu(void)
  {
   printf("|WELCOME TO CHOCOLATES VENDING MACHINE|\n\n");
  
   printf("1.The Chocolates\n");
   printf("2.Login To Your Account\n");
   printf("3.View Change\n");
   printf("4.Exit Vending Machine\n");
   printf("5.Exit Program\n\n");
  }
  
  void chocolate(void)
  {
   int u[30];
   char o[30];
   FILE *choclot;
   choclot=fopen("parking.txt","a");
   printf("Your Chocolate: ");
   scanf("%s",&amp;o);
   printf("Total Price: ");
   scanf("%d",&amp;u);
   fprintf(choclot,"Chocolate: %s Total Price: %d\n\n",o,u);
   fclose(choclot);
  }
  
  void change(void)
  {
   int i;
   printf("Your Balance: \n\n");
   for(i=0;i&lt;10;i++)
    printf("%d",choc[i]);
    printf("\n\n\n\n");
  }
  
  void end(void)
  {
   system("cls");
   printf("\t\t\tTHANK YOU FOR USING THIS SERVICES\n");
    printf("\t\t\t\t  Visit Us At \n\n");
    printf("\t\t\t    vendingmachine.com.my\n\n\n");
    printf(" First Programmer : Adawiyah\n");
    printf(" First Programmer : Vijayah Santhi\n");
  } 
  </code></pre>
  
  <p>Is it my program correct? Does my program neat and orderly? The goto statement is it that bad? Sorry, my English is bad. I'm trying my best finish my project within this few days. I need to present to my lecturer next week. </p>
  
  <p>Sorry for troubling you. I don't know how to copy&amp;paste here.</p>