A Student Grading System in C is a console-based application that helps manage student records, calculate grades based on marks, and display results. It is typically used for learning file handling, structures, and basic logic building in C.

 Key Features

• Student Data Entry: Add student name, ID/roll number, and marks for various subjects.
• Grade Calculation: Automatically calculates total, percentage, and assigns a grade (A, B, C, etc.).
• Display Records: Show all or specific student records.
• Search by ID: Find a student's result using their roll number.
• File Storage: Save and retrieve student data using file handling (optional but useful).
• Menu-Driven Interface: Easy navigation through options like Add, View, Search, Exit.

1.  How It Works

Data Input:

• Use struct to define a student (name, roll number, marks[]).
• Use scanf() or gets() to collect data from the user.

Grade Calculation:

• Calculate total and percentage.

Assign grade based on rules like:

if (percentage >= 90) grade = 'A';
else if (percentage >= 80) grade = 'B';
// and so on...
 

Display Functionality:

• Loop through records to print student info.
• Use formatting for a clean tabular layout.

Optional File Handling:

• Use fwrite() and fread() to save/load data from a file (like students.dat).

#Tech Stack

Language: C

Concepts Used:

• Structures (struct)
• Arrays
• File I/O (fopen, fwrite, fread)
• Control structures (if, switch, for, while)

 Advantages

• Great for understanding core programming concepts
• Can be extended with GUI in C++ or linked to databases later
• Teaches file handling and memory management in C

 Optional Enhancements

• Password protection for access
• Sorting students by marks or name
• GUI version using C++ with Win32 API or Qt