/*********************************************************************
* Filename: CafeMenuDesign.c
* Description: To understand how
to design menu based programs
* Author: Ravish Malhotra,
Infosys Technologies Ltd.
* Date: 30-Jun-2007
***************************
******************************************/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include<string.h>
#define NUMBEROFEEMPLOYEES 6
#define Valid 0
#define Invalid 1
/*Declare function prototype */
void fnAddCustomer();
int fncheckValidName(char *acCustName);
int fncheckValidAmount(int iAmountTemp);
float fncalbalance(int iAmount);
void fnUpdateDuration();
void fnDisplayDetails();
/*Define the Customer structure*/
typedef struct _cust{
int iCustId;
char acCustName[25];
int iAmount;
float fBalance;
float fDurationUsed;
}Customer;
Customer gasCustomer[5];
/*Declare global variables*/
int iLastGeneratedCustomerId=1001;
int iIndex=0;
/*Declartion of Functions used*/
/******************************
***************************************
* Function: main()
* Description: To design a
menu to implement the functionality such as
* job band change,
confirm employee and report.
* Input Parameters:
* int argc - Number of
command line arguments
* char **argv - The command
line arguments passed
* Returns: 0 on success
to the operating system
****************************
*****************************************/
int main (int argc, char** argv) {
/* Delcare the loop
variable and a variable for
user's choice */
int iChoice;
do{
/* Display the menu
and get the choice from
the user */
printf("\t\t1. Add Customer \n");
printf("\t\t2. Update Duration\n");
printf("\t\t3. Display Details\n");
printf("\t\t4. Exit\n");
printf("Enter your choice: ");
scanf("%d",&iChoice);
/* Based on user's choice,
the respective functionality is
invoked */
switch(iChoice){
case 1: fnAddCustomer();
break;
case 2: fnUpdateDuration();
break;
case 3: fnDisplayDetails();
break;
case 4: /* Quit the program */
exit(0);
}
} while (iChoice != 4);
/* Return a success code
to the Operating System */
return 0;
}
void fnAddCustomer(){
char acCustomerName[24];
int iAmount;
int iRet1;
int i=0;
if(iIndex<5)
{
printf("\nEnter the Customer details:\n");
printf("\nCustomer Name");
fflush(stdin);
scanf("%s",&acCustomerName);
/*check if name is valid*/
iRet1=fncheckValidName(acCustomerName);
if(iRet1==1)
{
exit(0);
}
printf("\nAmount");
scanf("%d",&iAmount);
/*check if amount is valid*/
iRet1=fncheckValidAmount(iAmount);
if(iRet1==1)
{
exit(0);
}
/*Update the customer records*/
gasCustomer.iCustId
=iLastGeneratedCustomerId;
strcpy(gasCustomer
.acCustName,acCustomerName);
gasCustomer.iAmount=iAmount;
gasCustomer.fBalance=
fncalbalance(iAmount);
printf("\nkkkk%f",
gasCustomer.fBalance);
gasCustomer.fDurationUsed=0;
iLastGeneratedCustomerId++;
iIndex++;
}
}
/*********************************************************************
* Function: fncheckValidName
* Description: To check if Name is valid
* Input Parameters:
* char *acCustName
ointer to customer array
* Returns: 0 if amount valid else 1
*********************************************
************************/
int fncheckValidName
(char *acCustName){
if(strlen(acCustName)<3
|| strlen(acCustName)>24)
{
printf("\n Invalid name length");
return Invalid;
}
else
return Valid;
}
/*********************************************************************
* Function: fncheckValidAmount
* Description: To check if amount is valid
* Input Parameters:
* iAmountTemp :Amount
* Returns: 0 if amount valid else 1
*********************************************
************************/
int fncheckValidAmount(int iAmountTemp){
if(iAmountTemp<0 ||
(iAmountTemp%100)!=0)
{
printf("\n Invalid Amount");
return Invalid;}
else
return Valid;
}
/**************************************
*******************************
* Function: fncalbalance
* Description: To calculate balance
* Input Parameters:
* iAmount: Amount entered
* Returns: balance
***************************************
******************************/
float fncalbalance(int iAmount)
{
float balance;
balance = iAmount/100*10
* Filename: CafeMenuDesign.c
* Description: To understand how
to design menu based programs
* Author: Ravish Malhotra,
Infosys Technologies Ltd.
* Date: 30-Jun-2007
***************************
******************************************/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include<string.h>
#define NUMBEROFEEMPLOYEES 6
#define Valid 0
#define Invalid 1
/*Declare function prototype */
void fnAddCustomer();
int fncheckValidName(char *acCustName);
int fncheckValidAmount(int iAmountTemp);
float fncalbalance(int iAmount);
void fnUpdateDuration();
void fnDisplayDetails();
/*Define the Customer structure*/
typedef struct _cust{
int iCustId;
char acCustName[25];
int iAmount;
float fBalance;
float fDurationUsed;
}Customer;
Customer gasCustomer[5];
/*Declare global variables*/
int iLastGeneratedCustomerId=1001;
int iIndex=0;
/*Declartion of Functions used*/
/******************************
***************************************
* Function: main()
* Description: To design a
menu to implement the functionality such as
* job band change,
confirm employee and report.
* Input Parameters:
* int argc - Number of
command line arguments
* char **argv - The command
line arguments passed
* Returns: 0 on success
to the operating system
****************************
*****************************************/
int main (int argc, char** argv) {
/* Delcare the loop
variable and a variable for
user's choice */
int iChoice;
do{
/* Display the menu
and get the choice from
the user */
printf("\t\t1. Add Customer \n");
printf("\t\t2. Update Duration\n");
printf("\t\t3. Display Details\n");
printf("\t\t4. Exit\n");
printf("Enter your choice: ");
scanf("%d",&iChoice);
/* Based on user's choice,
the respective functionality is
invoked */
switch(iChoice){
case 1: fnAddCustomer();
break;
case 2: fnUpdateDuration();
break;
case 3: fnDisplayDetails();
break;
case 4: /* Quit the program */
exit(0);
}
} while (iChoice != 4);
/* Return a success code
to the Operating System */
return 0;
}
void fnAddCustomer(){
char acCustomerName[24];
int iAmount;
int iRet1;
int i=0;
if(iIndex<5)
{
printf("\nEnter the Customer details:\n");
printf("\nCustomer Name");
fflush(stdin);
scanf("%s",&acCustomerName);
/*check if name is valid*/
iRet1=fncheckValidName(acCustomerName);
if(iRet1==1)
{
exit(0);
}
printf("\nAmount");
scanf("%d",&iAmount);
/*check if amount is valid*/
iRet1=fncheckValidAmount(iAmount);
if(iRet1==1)
{
exit(0);
}
/*Update the customer records*/
gasCustomer.iCustId
=iLastGeneratedCustomerId;
strcpy(gasCustomer
.acCustName,acCustomerName);
gasCustomer.iAmount=iAmount;
gasCustomer.fBalance=
fncalbalance(iAmount);
printf("\nkkkk%f",
gasCustomer.fBalance);
gasCustomer.fDurationUsed=0;
iLastGeneratedCustomerId++;
iIndex++;
}
}
/*********************************************************************
* Function: fncheckValidName
* Description: To check if Name is valid
* Input Parameters:
* char *acCustName
ointer to customer array* Returns: 0 if amount valid else 1
*********************************************
************************/
int fncheckValidName
(char *acCustName){
if(strlen(acCustName)<3
|| strlen(acCustName)>24)
{
printf("\n Invalid name length");
return Invalid;
}
else
return Valid;
}
/*********************************************************************
* Function: fncheckValidAmount
* Description: To check if amount is valid
* Input Parameters:
* iAmountTemp :Amount
* Returns: 0 if amount valid else 1
*********************************************
************************/
int fncheckValidAmount(int iAmountTemp){
if(iAmountTemp<0 ||
(iAmountTemp%100)!=0)
{
printf("\n Invalid Amount");
return Invalid;}
else
return Valid;
}
/**************************************
*******************************
* Function: fncalbalance
* Description: To calculate balance
* Input Parameters:
* iAmount: Amount entered
* Returns: balance
***************************************
******************************/
float fncalbalance(int iAmount)
{
float balance;
balance = iAmount/100*10