Student Grade Manager

A beginner‑friendly Java application built with Maven that demonstrates the fundamentals of arrays, file handling, and console input/output.
This project is designed as a learning exercise for new Java developers to practice core concepts while building a simple but useful tool.

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Features

• Store student names and grades in arrays
• Display all students and their grades
• Calculate the average grade
• Save grades to a text file (grades.txt)
• Load grades back from the file
• Simple menu‑driven console interface

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Learning Objectives

• Practice working with arrays to manage collections of data
• Understand file I/O using Java’s FileWriter, BufferedReader, and Scanner
• Gain experience with console input/output for user interaction
• Explore Maven project structure and dependency management
• Optionally extend with JUnit testing and JSON persistence

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Tech Stack

• Java (Core)
• Maven (build and dependency management)
• JUnit (testing, optional)
• Jackson (JSON persistence, optional)

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Installation & Usage

1. Clone the repository:

   git clone https://github.com/your-username/student-grade-manager.git
   cd student-grade-manager

Build the project with Maven:

mvn clean install

Run the application:

mvn exec:java -Dexec.mainClass="com.example.grades.StudentGradeApp"

Example Console Flow

1. Add Student
2. Display Students
3. Average Grade
4. Save
5. Load
6. Exit

Add Student → enter name and grade Display Students → shows all stored data Average Grade → calculates and prints the average Save → writes data to grades.txt Load → reads data back into arrays

Future Improvements -Add sorting (alphabetical or by grade) -Switch from arrays to ArrayList for dynamic storage -Save/load in JSON format using Jackson -Add unit tests with JUnit -Build a GUI version with JavaFX or Swing

Contributing -Pull requests are welcome! For major changes, please open an issue first to discuss what you’d like to change.