Program to input students name
#include "stdio.h"
void main()
{
char j='y';
FILE *fp;
struct record
{
char name[20];
int age;
};
struct record a;
fp=fopen("c:\\ctxt\\record.txt","a");
if(fp==NULL)
{
puts("Cannot open file");
exit();
}
while(j=='y')
{
printf("\nKey in the name of the student\n");
scanf("%s",a.name);
printf("\nKey in the age of the student\n");
scanf("%d",&a.age);
fprintf(fp,"%s %d\n",a.name,a.age);
printf("\nAdd another record?(Y/N)");
fflush(stdin);
j=getche();
}
fclose(fp);
}
Program to sort students name
#include "stdio.h"
struct record
{
char name[10];
int age;
};
void main()
{
FILE *fp,*ft;
int i,f=1;
struct record a[5000];
clrscr();
fp=fopen("c:\\ctxt\\record.txt","r");
if(fp==NULL)
{
puts("Cannot open file");
exit();
}
for(i=0;i<5000;i++)
{
if(f==1)
{
if((fscanf(fp,"%s%d",a[i].name,&a[i].age)==EOF))
f=0;
}
if(f==0)
a[i].name[0]='\0';
}
funcsort(a,4);
for(i=0;a[i].name[0]!='\0';i++)
printf("\nName is %s. Age is %d",a[i].name,a[i].age);
printf("\nFile sorted according to alphabetical order");
ft=fopen("c:\\ctxt\\record2.txt","w");
for(i=0;a[i].name[0]!=0;i++)
fprintf(ft,"%s %d\n",a[i].name,a[i].age);
fclose(fp);
fclose(ft);
remove("c:\\ctxt\\record.txt");
rename("c:\\ctxt\\record2.txt","c:\\ctxt\\record.txt");
}
/* Function "funcsort()" is in picture below type it in for it to work */
here you are entering data by structure but its written "suppose a file contain student's record...."
ReplyDeleteRecords are created \updated \deleted through structures.
DeleteVIJAYNITJ-->>
ReplyDelete//THIS PROGRAM WRITE RECORDS IN A FILE AND THEN READ IT RECORDS IN SORTED ORDER BY NAMES IN RECORD
//AND DISPLAY THEM ON SCREEN
#include
#include
#include
int main()
{
FILE *fw,*fr;
char opsn='y';
char *p;
int count=0;
//for writing records into file
struct student
{
char name[20];
int age;
}s;
fw=fopen("op.txt","w");
while(opsn=='y')
{
count++;
printf("Enter student name and age\n");
scanf("%s%d",s.name,&s.age);
fprintf(fw,"%3s%3d\n",s.name,s.age);
printf("Wanna enter another record(y|n)\n");
fflush(stdin);
opsn=getche();
}
fclose(fw);
//for reading records rom file
fr=fopen("op.txt","r");
struct st
{
char nm[20];
int ag;
}s2[count];
printf("\nRecord from file is\n");
int i=0,j;
char temp[20];
while(fscanf(fr,"%s%d",s.name,&s.age)!=EOF)
{
strcpy(s2[i].nm,s.name);
s2[i].ag=s.age;
i++;
}
// for sorting records
for(i=0;i0)
{
strcpy(temp,s2[i].nm);
strcpy(s2[i].nm,s2[j].nm);
strcpy(s2[j].nm,temp);
}}}
//for displaying records
for(i=0;i<count;i++)
printf("\n%s\t\t%d",s2[i].nm,s2[i].ag);
fclose(fr);
}
#include
Delete#include
#include
#include
int main()
{
FILE *fw,*fr;
char opsn='y';
char *p;
int count=0;
//for writing records into file
struct student
{
char name[20];
int age;
}s;
fw=fopen("op.txt","w");
while(opsn=='y')
{
count++;
printf("Enter student name and age\n");
scanf("%s%d",s.name,&s.age);
fprintf(fw,"%3s%3d\n",s.name,s.age);
printf("Wanna enter another record(y|n)\n");
fflush(stdin);
opsn=getche();
}
fclose(fw);
//for reading records rom file
fr=fopen("op.txt","r");
struct st
{
char nm[20];
int ag;
}s2[count];
printf("\nRecord from file is\n");
int i=0,j;
char temp[20];
while(fscanf(fr,"%s%d",s.name,&s.age)!=EOF)
{
strcpy(s2[i].nm,s.name);
s2[i].ag=s.age;
i++;
}
// for sorting records
for(i=0;i<count; i++)
{
strcpy(temp,s2[i].nm);
strcpy(s2[i].nm,s2[j].nm);
strcpy(s2[j].nm,temp);
}
//for displaying records
for(i=0;i<count;i++)
printf("\n%s\t\t%d",s2[i].nm,s2[i].ag);
fclose(fr);
}
bye
ReplyDelete