Creating Files Enter The Data

            #include<stdio.h>
            struct student
            {
                char name[20];
                int rollno, fees;
            };
        
            main()
            {
                struct student s;
                FILE *fp;
        
                fp = fopen("data.dat", "wb");
        
                if(fp == NULL) 
                {
                    printf("Error opening file!");
                    return;
                }
        
                printf("Enter the Name : ");
                scanf("%s", s.name);
        
                printf("\n Enter Roll No. :");
                scanf("%d", &s.rollno);
        
                printf("\n enter the Fees : ");
                scanf("%d", &s.fees);
                
                fwrite(&s, sizeof(s), 1, fp);
        
                fclose(fp);
            }
        

Output: