int adm_no = Integer.parseInt(jTextField1.getText());
        String name = jTextField2.getText();
        String stream = jTextField3.getText();
        if (name.isEmpty())
        {
            JOptionPane.showMessageDialog(this, "ERROR");
        }
        else if (stream.isEmpty())
        {
            JOptionPane.showMessageDialog(this, "ERROR");
        }
        else
        {
            try
            {
                Class.forName("java.sql.DriverManager");
                Connection con = (Connection)
                DriverManager.getConnection("jdbc:mysql://localhost:3306/student" , "root" , "tiger");
                Statement stmt = (Statement) con.createStatement();
                String query = "Insert into student values ("+adm_no+" , '"+name+"' , '"+stream+"');";
                stmt.executeUpdate(query);
            }
            catch(Exception e)
            {
                JOptionPane.showMessageDialog(this, e);
            }
        }