C program for Student Details using File Handling
Write a Menu Driven C Program for Student Details using File Handling. Here’s a Simple Program C Program for Student Details using File Handling in C Programming Language.
This program stores the information (ID, name, marks1, marks2, marks3) of a student and displays it on the screen using structures.
Below is the source code for Menu Driven C Program for Student Details using File Handling which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
#include <stdio.h> typedef struct { int id; char name[25]; int m1,m2,m3; }STD; STD s; void display(FILE *); int search(FILE *,int); void main() { int i,n,id_key,opn; FILE *fp; printf(" How many Records do you want? "); scanf("%d",&n); fp=fopen("stud.dat","w"); for(i=0;i<n;i++) { printf("Read the Info for Student: %d (Id,name,marks1,marks2,marks3) \n",i+1); scanf("%d%s%d%d%d",&s.id,s.name,&s.m1,&s.m2,&s.m3); fwrite(&s,sizeof(s),1,fp); } fclose(fp); fp=fopen("stud.dat","r"); do { printf("\nPress :: \n 1- Display\n 2- Search\n 3- Exit\n Your Option ? "); scanf("%d",&opn); switch(opn) { case 1: printf("\n Student Records in the File \n"); display(fp); break; case 2: printf(" Read the ID of the student to be searched ?"); scanf("%d",&id_key); if(search(fp,id_key)) { printf("Success ! Record found in the file\n"); printf("%d\t%s\t%d\t%d\t%d\n",s.id,s.name,s.m1,s.m2,s.m3); } else printf(" Failure!! Record with id %d not found\n",id_key); break; case 3: printf(" Exit!! Press a key . . ."); getch(); break; default: printf(" Invalid Option!!! Try again !!!\n"); break; } }while(opn != 3); fclose(fp); } /* End of main() */ void display(FILE *fp) { rewind(fp); printf("ID\tName\tMarks1\tMarks2\tMarks3\n"); while(fread(&s,sizeof(s),1,fp)) printf("%d\t%s\t%d\t%d\t%d\n",s.id,s.name,s.m1,s.m2,s.m3); } int search(FILE *fp, int id_key) { rewind(fp); while(fread(&s,sizeof(s),1,fp)) if( s.id == id_key) return 1; return 0; }
OUTPUT : :
How many Records do you want? 4 Read the Info for Student: 1 (Id,name,marks1,marks2,marks3) 1 John 50 77 88 Read the Info for Student: 2 (Id,name,marks1,marks2,marks3) 2 Smith 76 89 90 Read the Info for Student: 3 (Id,name,marks1,marks2,marks3) 3 Jackman 76 66 87 Read the Info for Student: 4 (Id,name,marks1,marks2,marks3) 4 Rambo 45 53 62 Press :: 1- Display 2- Search 3- Exit Your Option ? 1 Student Records in the File ID Name Marks1 Marks2 Marks3 1 John 50 77 88 2 Smith 76 89 90 3 Jackman 76 66 87 4 Rambo 45 53 62 Press :: 1- Display 2- Search 3- Exit Your Option ? 2 Read the ID of the student to be searched ?3 Success ! Record found in the file 3 Jackman 76 66 87 Press :: 1- Display 2- Search 3- Exit Your Option ? 1 Student Records in the File ID Name Marks1 Marks2 Marks3 1 John 50 77 88 2 Smith 76 89 90 3 Jackman 76 66 87 4 Rambo 45 53 62 Press :: 1- Display 2- Search 3- Exit Your Option ? 3 Exit!! Press a key . . .
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Thanks for reading the post.
If I open the .dat or .TXT file in a text editor then it is not showing me the entered data and instead showing some random characters.
Plz help me with this.
same
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