Program to commit and rollback in Java

TransManagement.java

import java.sql.*;
import java.io.*;
class TransManagement
{
     static String DBURL = "jdbc:oracle:thin:@localhost:1521:XE";
     static String DBUSER = "local";
     static String DBPASS = "test";
     public static void main(String args[])
     {
          try
          {
               //Loading the driver
               Class.forName("oracle.jdbc.driver.OracleDriver");
               //Cretae the connection object
               Connection con = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
               con.setAutoCommit(false);  
               //Insert the record
               String sql = "INSERT INTO Employee (empid, empname) VALUES (?, ?)";
               PreparedStatement ps = con.prepareStatement(sql);
               //Used to take user input
               BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
   
               while (true)
               {
                    System.out.print("Enter employee Id: ");  
                    String s1 = br.readLine();  
                    int empid = Integer.parseInt(s1);

                    System.out.print("Enter employee name: ");  
                    String name = br.readLine();  

                    ps.setInt(1, empid);
                    ps.setString(2, name);
                    ps.executeUpdate();
                    System.out.println("commit/rollback");  
                    String answer = br.readLine();
                    if (answer.equals("commit"))
                    {
                         con.commit();
                    }
                    if (answer.equals("rollback"))
                    {
                         con.rollback();
                    }
                    System.out.println("Want to add more records y/n");  
                    String ans = br.readLine();
                    if (ans.equals("n"))
                    {
                         break;
                    }
               }
               con.commit();
               System.out.println("record successfully saved");
               con.close();//before closing connection commit() is called
          }
          catch(Exception ex)
          {
               ex.printStackTrace();
          }
     }
}