Question

code in C

Step 1

• Write a program that will read in a list of addresses (100 maximum) from a file.
• The program should read records from a file until an EOF is found.
• The program must read one character at a time from the file using fgetc.

For example: chrLetter = fgetc( pfilInput );

• No partial addresses/records will be given.
• The format of the addresses is: RecordID, Full Name, Street, City, State, ZipCode

Step 2

• Store the addresses in an array of structures.
• Use the typedef below
• You will have to parse the input lines to separate the fields.
• You will have to separate full name into first, middle and last name.
• Trim all leading and trailing whitespace for EACH field.

typedef struct

{

      long lngRecordID;

      char strFirstName[ 50 ];

      char strMiddleName[ 50 ];

      char strLastName[ 50 ];

      char strStreet[ 100 ];

      char strCity[ 50 ];

      char strState[ 50 ];

      char strZipCode[ 50 ];

} udtAddressType;

Step 3

• Call a subroutine from main and pass the array of structures as a parameter. In the subroutine, load all the addresses from the file into the array of structures.

Step 4

• Call a subroutine from main and pass the array of structures as a parameter. In the subroutine, print out all the addresses. Make it look pretty. Don’t print out blank records. For example:

------------------------------------------------------------

Customer #1

            First Name:          Luke

            Middle Name:      

            Last Name:          Skywalker

            Address:              123 Elm Street

            City:                    Corusant

            State:                  Ohio

            Zip Code:             45202

------------------------------------------------------------

Customer #2

…

Extra Credit

• After you read in the addresses call a subroutine to sort the addresses alphabetically by last name, first name. Try the quick sort in the STL (standard template library).

Extra Extra Credit

• Eliminate any duplicates addresses (just check street and zip code).

Answer 1

#include<stdio.h>
#define MAX 100
typedef struct
{
    long lngRecordID;
    char strFirstName[ 50 ];
    char strMiddleName[ 50 ];
    char strLastName[ 50 ];
    char strStreet[ 100 ];
    char strCity[ 50 ];
    char strState[ 50 ];
    char strZipCode[ 50 ];
}udtAddressType;

//to load the addresses from file in array
int load_address(udtAddressType arr[])
{
   FILE *file;
   file = fopen("addresses.txt","r");
   if(file==NULL)
       printf("Error");
   int i=0,j=0;
   char c;
   while(getc(file) != EOF)
   {  
       fseek( file, -1, SEEK_CUR );
       fscanf(file,"%d",&arr[i].lngRecordID);  
       c = getc(file);
       c = getc(file);
       j=0;
       while(c != ' ' )
       {
           arr[i].strFirstName[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != ' ' )
       {
           arr[i].strMiddleName[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != ',' )
       {
           arr[i].strLastName[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != ',' )
       {
           arr[i].strStreet[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != ',' )
       {
           arr[i].strCity[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != ',' )
       {
           arr[i].strState[j] = c;
           j++;
           c = getc(file);
       }
       c = getc(file);
       j=0;
       while(c != '\n' )
       {
           arr[i].strZipCode[j] = c;
           j++;
           c = getc(file);
       }
       i++;
   }
   return i;
}

//to print the array
void printAddress(udtAddressType arr[],int size)
{
   int i;
   for( i=0;i<size;i++)
   {
       printf("-----------------------------------------------------------------------\n");
       printf("Customer #%d\n",i+1);
       printf("\t\tFirst Name : %s\n",arr[i].strFirstName);
       printf("\t\tMiddle Name : %s\n",arr[i].strMiddleName);
       printf("\t\tLast Name :   %s\n",arr[i].strLastName);
       printf("\t\tAddress :     %s\n",arr[i].strStreet);
       printf("\t\tCity :        %s\n",arr[i].strCity);
       printf("\t\tState :       %s\n",arr[i].strState);
       printf("\t\tZip Code :    %s\n\n",arr[i].strZipCode);
   }
}

int main()
{
   udtAddressType arr[MAX];
   int size = load_address(arr);
   printAddress(arr,size);
   return 0 ;
}

//Output