Java Swing Dynamic TextFields

import java.awt.*;
import java.sql.*;
import javax.swing.*;
import java.awt.event.*;
class DynamicTextFields
{
    public static void main(String[] args) 
    {
        JFrame frame=new JFrame();
        JButton b=new JButton("Add");
        b.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
                try{
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","root");
            Statement st=con.createStatement();
            ResultSet rs=st.executeQuery("select * from data where id=1");
            String name="",address="";
            if(rs.next()){
                name=rs.getString("name");
                address=rs.getString("address");
            }
             JFrame f=new JFrame();
             f.setLayout(null);
             JLabel lab1=new JLabel("Name");
             JTextField text1=new JTextField(20);
             JLabel lab2=new JLabel("Address");
             JTextField text2=new JTextField(20);
             lab1.setBounds(10,10,100,20);
             text1.setBounds(120,10,100,20);
             lab2.setBounds(10,40,100,20);
             text2.setBounds(120,40,100,20);
             text1.setText(name);
             text2.setText(address);
             f.add(lab1);
             f.add(text1);
             f.add(lab2);
             f.add(text2);
             f.setSize(300,100);
             f.setVisible(true);
                }
                catch(Exception ex){}
            }
        });
        frame.add(b);
        frame.pack();
        frame.setVisible(true);
    }
}