Program using fprintf & fscanf functions in file Handling

#include< stdio.h >
/*Program using fprintf & fscanf functions in file Handling */
main()
{
FILE *fp;
int num,qty,I;
float price,value;
char item[10],filename[10];
printf(“Enter filename”);
scanf(“%s”,filename);
fp=fopen(filename,”w”);
printf(“Input Some data\n\n”0;
printf(“Enter Values for Item name number price quantity\n”);
for (I=1;I< =3;I++)
{
fscanf(stdin,”%s%d%f%d”,item,&number,&price,&quality);
fprintf(fp,”%s%d%f%d”,itemnumber,price,quality);
}
fclose (fp);
fprintf(stdout,”\n\n”);
fp=fopen(filename,”r”);
/*Reading data from file*/
printf(“Item name number price quantity value”);
for(I=1;I< =3;I++)
{
fscanf(fp,”%s%d%f%d”,item,&number,&prince,&quality);
value=price*quantity”);
fprintf(“stdout,”%s%d%f%d%d\n”,item,number,price,quantity,value);
}
fclose(fp);
}