How to use : Java GUI JTable - Filter Data in JTable

TableRowSorter<DefaultTableModel> sorter = new TableRowSorter<DefaultTableModel> (model);
table.setRowSorter(sorter);

String expr = txtFilter.getText();
sorter.setRowFilter(RowFilter.regexFilter(expr));
sorter.setSortKeys(null);

CREATE TABLE `customer` (
  `CustomerID` varchar(4) NOT NULL,
  `Name` varchar(50) NOT NULL,
  `Email` varchar(50) NOT NULL,
  `CountryCode` varchar(2) NOT NULL,
  `Budget` double NOT NULL,
  `Used` double NOT NULL,
  PRIMARY KEY  (`CustomerID`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

-- 
-- dump ตาราง `customer`
-- 

INSERT INTO `customer` VALUES ('C001', 'Win Weerachai', '[email protected]', 'TH', 1000000, 600000);
INSERT INTO `customer` VALUES ('C002', 'John  Smith', '[email protected]', 'UK', 2000000, 800000);
INSERT INTO `customer` VALUES ('C003', 'Jame Born', '[email protected]', 'US', 3000000, 600000);
INSERT INTO `customer` VALUES ('C004', 'Chalee Angel', '[email protected]', 'US', 4000000, 100000);

package com.java.myapp;

import java.awt.EventQueue;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.RowFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableRowSorter;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class MyForm extends JFrame {

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				MyForm frame = new MyForm();
				frame.setVisible(true);
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public MyForm() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 580, 242);
		setTitle("ThaiCreate.Com Java GUI Tutorial");
		getContentPane().setLayout(null);
		
		// ScrollPane
		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setBounds(64, 44, 440, 89);
		getContentPane().add(scrollPane);
		
		// Table
		JTable table = new JTable();
		scrollPane.setViewportView(table);
		
		// Model for Table
		DefaultTableModel model = (DefaultTableModel)table.getModel();
		model.addColumn("CustomerID");
		model.addColumn("Name");
		model.addColumn("Email");
		model.addColumn("CountryCode");
		model.addColumn("Budget");
		model.addColumn("Used");


		
		JLabel lblFilter = new JLabel("Filter :");
		lblFilter.setBounds(158, 147, 72, 14);
		getContentPane().add(lblFilter);
		
		// Filter
		final JTextField txtFilter = new JTextField();
		txtFilter.setBounds(197, 144, 129, 20);
		getContentPane().add(txtFilter);

		// Header Sort
		final TableRowSorter<DefaultTableModel> sorter = new TableRowSorter<DefaultTableModel> (model);
		table.setRowSorter(sorter);
		
		// Button OK
		JButton btnOK = new JButton("OK");
		btnOK.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				String expr = txtFilter.getText();
				sorter.setRowFilter(RowFilter.regexFilter(expr));
				sorter.setSortKeys(null);
			}
		});
		btnOK.setBounds(336, 144, 59, 23);
		getContentPane().add(btnOK);
		
		
		Connection connect = null;
		Statement s = null;
		
		try {
			Class.forName("com.mysql.jdbc.Driver");

			connect =  DriverManager.getConnection("jdbc:mysql://localhost/mydatabase" +
					"?user=root&password=root");
			
			s = connect.createStatement();
			
			String sql = "SELECT * FROM  customer ORDER BY CustomerID ASC";
			
			ResultSet rec = s.executeQuery(sql);
			int row = 0;
			while((rec!=null) && (rec.next()))
            {			
				model.addRow(new Object[0]);
				model.setValueAt(rec.getString("CustomerID"), row, 0);
				model.setValueAt(rec.getString("Name"), row, 1);
				model.setValueAt(rec.getString("Email"), row, 2);
				model.setValueAt(rec.getString("CountryCode"), row, 3);
				model.setValueAt(rec.getFloat("Budget"), row, 4);
				model.setValueAt(rec.getFloat("Used"), row, 5);
				row++;
            }

			rec.close();
             
		} catch (Exception e) {
			// TODO Auto-generated catch block
			JOptionPane.showMessageDialog(null, e.getMessage());
			e.printStackTrace();
		}
		
		try {
			if(s != null) {
				s.close();
				connect.close();
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
	}
}