Coding an Application using JDBC in Java

Code for an Application in Java that performs INSERT , UPDATE, DELETE and SELECT on MYSQL Database using JDBC

package practiceproject;
import java.sql.*;
import java.util.Scanner;
public class democlass {

  public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException{
  
  try
  {	int choice=0;
    student s = new student();
    do
    {
      System.out.println("Select an operation \n 1- Registration \n 2- Password Update \n 3- Delete a Record \n 4- Search for a Student \n 5- Exit");
      Scanner choicein = new Scanner(System.in);
      choice=choicein.nextInt();
      switch(choice)
      {
        case 1:
          s.getStudentDetails();
          s.insertStudent();
          break;
        case 2:
          s.updateStudentPassword();
          break;
        case 3:
          s.deleteStudentRecord();
          break;
        case 4:
          s.searchStudent();
          break;
        case 5:
          break;
        default:
          System.out.println("Select the correct choice");
      }
    }while(choice!=5);
    System.out.println("Thanks for Using our Software");
  }
  catch(Exception e)
  {
    System.out.println(e.getMessage());
  }		
  }
}
class student
{
private String name;
private String password;
private String country;
private int mark;

public void getStudentDetails() {
  Scanner input = new Scanner(System.in);
  System.out.println("Enter your Name");
  name = input.nextLine();
  System.out.println("Enter your password");
  password = input.nextLine();
  System.out.println("Enter your Country");
  country = input.nextLine();
  System.out.println("Enter the mark");
  mark = input.nextInt();
}

public void insertStudent() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
  //here we are going to work with a database 
  //we need to open a database connection 
  dbmsconnection dbmsconnect = new dbmsconnection("jdbc:mysql://localhost:3306/vit","root","");
  Connection con = dbmsconnect.getConnection();
  String sql = "insert into student values (?,?,?,?);";
  PreparedStatement stmt = con.prepareStatement(sql);
  stmt.setString(1, name);
  stmt.setString(2, password);
  stmt.setString(3, country);
  stmt.setInt(4, mark);
  int i = stmt.executeUpdate();
  System.out.println("Record  inserted successfully");
  dbmsconnect.closeConnection(con, stmt);
}

public void updateStudentPassword() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
  dbmsconnection dbmsconnect = new dbmsconnection("jdbc:mysql://localhost:3306/vit","root","");
  Connection con = dbmsconnect.getConnection();
  System.out.println("Enter Your Name");
  Scanner input = new Scanner(System.in);
  String inputname=input.nextLine();
  System.out.println("Enter the new Password");
  String inputpass=input.nextLine();
  String sql = "update student set password = ? where name = ?;";
  PreparedStatement stmt = con.prepareStatement(sql);
  stmt.setString(1, inputpass);
  stmt.setString(2, inputname);
  int i = stmt.executeUpdate();
  if(i>0)
  {
    System.out.println("Record updated sucessfully");
  }else
  {
    System.out.println("No Such record in the Database");
  }
  dbmsconnect.closeConnection(con, stmt);
}


public void deleteStudentRecord() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
dbmsconnection dbmsconnect = new dbmsconnection("jdbc:mysql://localhost:3306/vit","root","");
Connection con = dbmsconnect.getConnection();
System.out.println("Enter the Name of the Student");
Scanner input = new Scanner(System.in);
String inputname=input.nextLine();
String sql = "delete from student where name = ?;";
PreparedStatement stmt = con.prepareStatement(sql);
stmt.setString(1, inputname);
int i = stmt.executeUpdate();
if(i>0)
{
  System.out.println("Record Deleted Successfully");
}
else
{
  System.out.println("No Such Record in the Database");
}
dbmsconnect.closeConnection(con, stmt);
}

public void searchStudent() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
dbmsconnection dbmsconnect = new dbmsconnection("jdbc:mysql://localhost:3306/vit","root","");
Connection con = dbmsconnect.getConnection();
System.out.println("Enter Your Name");
Scanner input = new Scanner(System.in);
String inputname=input.nextLine();
String sql = "select * from student where name=?";
PreparedStatement stmt = con.prepareStatement(sql);
stmt.setString(1, inputname);
ResultSet rs = stmt.executeQuery();
if(rs.next()==false)
{
  System.out.println("No such record found in the database");
}
else
{	
  System.out.println(rs.getString(1)+rs.getString(2)+rs.getString(3)+rs.getInt(4));
  
}
dbmsconnect.closeConnection(con, stmt);
}
}

class dbmsconnection
{
String url;
String username;
String password;

public dbmsconnection(String url, String username, String password) {
  this.url = url;
  this.username = username;
  this.password = password;
}

public Connection getConnection() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
  Connection con=null;
  Class.forName("com.mysql.cj.jdbc.Driver").newInstance();
  con = DriverManager.getConnection(url,username,password);
  System.out.println("Connection Established Successfully");
  return con;
}

public void closeConnection(Connection con,Statement stmt) throws SQLException
{
  stmt.close();
  con.close();
  System.out.println("The connection is closed");
}
}