Program to store family members details, C/C++ Programming

Assignment Help:

Program to store family members details in C++:

#include

#include

#include

struct record

{

  char name[30];

  int age;

  char state[40];

}x;

//calculates average of ages all family members

float  averagecalculation(char sr_file[20])

{

 float avg;

 int totalmembers=0,totalage=0;

 FILE *fp1;

 fp1=fopen(sr_file,"r");

 if(fp1==NULL)

 {

   printf("cannot read file %s",sr_file);

   exit(0);

 }

 while(fscanf(fp1,"%[^\n]%d%[^\n]",&x.name,&x.age,&x.state)!=EOF)

 {

totalmembers++;

 totalage=totalage+x.age;

 }

 fclose(fp1);

 avg=(float)totalage/totalmembers;

 return avg;

 }

 //prints family members names who live in TEXAS

 void print_members_of_texas(char sr_file[20])

 {

 

 FILE *fp1;

 fp1=fopen(sr_file,"r");

 if(fp1==NULL)

 {

   printf("cannot read file %s",sr_file);

   exit(0);

 }

 printf("\nFamily members who live in Texas are\n");

 while(fscanf(fp1,"%[^\n]%d%[^\n]",&x.name,&x.age,&x.state)!=EOF)

 {

  if(strcmp(x.state,"TEXAS")==0)

     printf("\n%s",x.name);

  }

  fclose(fp1);

}

void main()

{

   FILE* fp1;

   char sr_file[20];

   float avg;

   clrscr();

   printf("Enter the source file name to enter data");

   gets(sr_file);

   fp1=fopen(sr_file,"w");

   if(fp1==NULL)

   {

     printf("cannot create %s ",sr_file);

     exit(0);

   }

   while(1)

   {

    fflush(stdin);

    printf("Enter name of ur family member(-1 to quit)  ");

    scanf("%[^\n]",x.name);

    if(strcmp(x.name,"-1")==0)

       break;

    fflush(stdin);

    printf("Enter his age   ");

    scanf("%d",&x.age);

    if (x.age<1)

      {

       printf("invalid input  ");

       continue;

      }

    fflush(stdin);

    printf("Enter state where he lives   ");

    scanf("%[^\n]",x.state);

    fprintf(fp1,"%s\t%d\t%s\n",x.name,x.age,x.state);

 }

 fclose(fp1);

 printf("Done reading input");

 //Now calculate average

 avg=averagecalculation(sr_file);

 printf("\nAverage age  of family is %f ",avg);

 //Now check if any family member is in Texas

  print_members_of_texas(sr_file);

  getch();

 }

PROGRAM  Description

 Program has 3 functions.

1.Main()- creates a file to store family members details .It opens the file in write mode. Its fields are name of member ,age and where he lives. Then it takes input into the structure record fields called name ,age ,state till user presses -1. It checks if age entered is >1 or not ,otherwise it gives "invalid input"Then it completes taking input by closing the file. After that it  calls 2 functions named averagecalculation() and print_members_of_texas() for calculating the average of family members age and to print the family members who live in TEXAS respectively.

2.averagecalculation()- It is a function to calculate the average of all family members. It is started by opening the file created in main function in read mode. It reads each record of file stored in sequence till end of file. It  calculates average of ages. Lastly closes the file and returns to main() with average.

3.print_members_of_texas()-It is started by opening the file created in main function in read mode. It reads each record of file stored in sequence till end of file. Then it check each record if person's city is TEXAS or not, if it is so this function prints the person's name.  Lastly closes the file.


Related Discussions:- Program to store family members details

Define bitwise-and operator, Define Bitwise-AND Operator: &:? The bitwi...

Define Bitwise-AND Operator: &:? The bitwise-AND operator (&) compares every bit of its first operand to the corresponding bit of its second operand. If both bits are 1 the mat

What is difference among macro and template?, A: In C++ there is a main dif...

A: In C++ there is a main difference among a template and a macro. Merely a macro is a string which the compiler replaces along with the value that was defined. For example #define

What is a union how does it differ from a structure, Question : (a) (i)...

Question : (a) (i) What is a structure member in C? What is the relationship between a structure member and the structure? (ii) How can structure variables be declared in C?

Print the sorted output on the console, Question 1 Describe the theory beh...

Question 1 Describe the theory behind class templates and function templates along with relevant programming examples Question 2 With the help of suitable programming example

Application for tag in the forest game, Your program should use the Free Pa...

Your program should use the Free Pascal compiler or the Lazarus IDE described in CSC 540. When you hand in your assignment to the digital dropbox, it should be a .PAS file, not zip

Differentiate between the expression ++a and a++, Differentiate between the...

Differentiate between the expression "++a" and "a++"? - With ++a, increment happens first on variable a, and resulting value is used. This is known as prefix increment. - Wi

Change to palindrome, A palindrome is a string that reads the same from bot...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Define a function in c program, Define a function in c program: int f1...

Define a function in c program: int f1() { static int x=10; return x; } int f2() { int y=5; return y; } extern int z; void f()     {

Project (network programming), Need help in network programming in C++ proj...

Need help in network programming in C++ project. How much you charge?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd