String user=new String(tf1.getText());
            String pass=new String(pf1.getPassword());
            String mb=new String(tf2.getText());
            String email=new String(tf3.getText());
            String query="INSERT into user_info (username,password,email_id,mobile number) VALUES('"+user+"','"+pass+"','"+email+"','"+mb+"')";
            try {
                    Connection myConn=DriverManager.getConnection("jdbc:mysql://localhost:3306/javaproject","root","noor1032");
                    System.out.println("databse connected");
                    PreparedStatement myStat=myConn.prepareStatement(query);
                    System.out.println("statement prepapred");
                    myStat.setString(1, user);
                    myStat.setString(2, pass);
                    myStat.setString(3, email);
                    myStat.setString(4, mb);
                    myStat.executeUpdate();
                    System.out.println("query executed");
                    myConn.close();
                    JOptionPane.showMessageDialog(null, "saved");
               }
            catch(Exception f)
                {
                    System.err.println("Got an exception!");
                    System.err.println(f.getMessage());
                }

myStat.setString(1, user);
myStat.setString(2, pass);
myStat.setString(3, email);
myStat.setString(4, mb);

String query="INSERT into user_info (username,password,email_id,mobile number) VALUES(?,?,?,?)";