added example sql file and modified README.md file

Author: sankarnagarapu

.idea/.gitignore

@@ -1,2 +1,47 @@
-# Student-Management-System-in-Java
-Student Management System in Java
+# Student Management System in JAVA
+This is a simple Student Management System project implemented using Java and MySQL. It allows users to perform CRUD (Create, Read, Update, Delete) operations on student data such as ID, first name, last name, major, phone number, GPA, and date of birth.
+
+# Features
+* Add a new student
+* View student data
+* Update student data
+* search for a student
+* sort students by major, lastname and firstname.
+
+# Requirements
+* Java 8 or higher.
+* MySQL Server.
+
+# Installation
+1. Clone the repository
+```bash
+git clone https://github.com/your_username/student-management-system.git
+```
+2. Create a new MySQL database and import the student_data.sql file to 
+3. create the required table and sample data.
+4. Update the MySQL database connection details in the dbConnect class.
+5. Build and run the project using a Java IDE or command-line tool.
+
+
+# Usage
+* Launch the application
+* Select the desired operation from the main menu
+* Follow the prompts to enter or update student data
+
+# Database Columns
+The database table used in this project has the following columns:
+
+* Student_ID: The unique identifier for each student.  
+* first_name: The first name of the student.  
+* last_name: The last name of the student.  
+* major: The major that the student is studying.  
+* Phone: The phone number of the student.  
+* GPA: The grade point average of the student.  
+* DOB: The date of birth of the student.
+
+# Future Enhancements
+* Fee tracking
+* Attendance management
+
+
+

.idea/misc.xml

@@ -0,0 +1,56 @@
+-- MySQL dump 10.13  Distrib 8.0.31, for Win64 (x86_64)
+--
+-- Host: localhost    Database: studata
+-- ------------------------------------------------------
+-- Server version	8.0.31
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
+/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
+/*!50503 SET NAMES utf8mb4 */;
+/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
+/*!40103 SET TIME_ZONE='+00:00' */;
+/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
+
+--
+-- Table structure for table `sdata`
+--
+
+DROP TABLE IF EXISTS `sdata`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!50503 SET character_set_client = utf8mb4 */;
+CREATE TABLE `sdata` (
+  `Student_ID` varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci NOT NULL,
+  `first_name` varchar(30) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci NOT NULL,
+  `last_name` varchar(30) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci NOT NULL,
+  `major` varchar(50) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci NOT NULL,
+  `Phone` varchar(12) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci DEFAULT NULL,
+  `GPA` varchar(5) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci NOT NULL,
+  `DOB` varchar(30) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_520_ci DEFAULT NULL,
+  UNIQUE KEY `Student ID` (`Student_ID`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_unicode_520_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `sdata`
+--
+
+LOCK TABLES `sdata` WRITE;
+/*!40000 ALTER TABLE `sdata` DISABLE KEYS */;
+INSERT INTO `sdata` VALUES ('001','Sankar','Nagarapu','EEE','9398068299','7.0','2002-06-24'),('002','Dharani','Nagarapu','CSE','9133501412','8.0','2004-06-05'),('003','Sindhu','Makarapu','CSE','9133505025','10.0','2004-06-25'),('004','Sneha','kurma','CSE','9548625756','10.0','2004-06-27'),('005','meghana','null','CSE','9548651652','10.0','2004-05-22');
+/*!40000 ALTER TABLE `sdata` ENABLE KEYS */;
+UNLOCK TABLES;
+/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
+
+/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
+/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
+/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
+/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
+
+-- Dump completed on 2023-03-12  9:28:19