Java Swing How to - Use a regexFilter to filter table content

Question

We would like to know how to use a regexFilter to filter table content.
Answer

/*w w  w.j  ava2  s. c  om*/

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.regex.PatternSyntaxException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.RowFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;

public class Main {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Sorting JTable");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    MyTableModel model = new MyTableModel();
    JTable table = new JTable(model);
    final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model);
    table.setRowSorter(sorter);
    JScrollPane pane = new JScrollPane(table);
    frame.add(pane, BorderLayout.CENTER);
    JPanel panel = new JPanel(new BorderLayout());
    JLabel label = new JLabel("Filter");
    panel.add(label, BorderLayout.WEST);
    final JTextField filterText = new JTextField("Y");
    panel.add(filterText, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    JButton button = new JButton("Filter");
    button.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        String text = filterText.getText();
        try {
          sorter.setRowFilter(RowFilter.regexFilter(text));
        } catch (PatternSyntaxException pse) {
          System.err.println("Bad regex pattern");
        }
      }
    });
    frame.add(button, BorderLayout.SOUTH);
    frame.setSize(300, 250);
    frame.setVisible(true);
  }
}

class MyTableModel extends DefaultTableModel {
  Object rows[][] = { { "A", "A", 1 }, { "E", "E", 4 }, { "Y", "Y", 3 } };

  String columns[] = { "Symbol", "Name", "Price" };

  public Class getColumnClass(int column) {
    Class returnValue;
    if ((column >= 0) && (column < getColumnCount())) {
      returnValue = getValueAt(0, column).getClass();
    } else {
      returnValue = Object.class;
    }
    return returnValue;
  }
}