Filter a JTable with RowFilter in Java

//from   w  ww.ja  v  a  2  s. co m
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
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) {
    Object[][] data = { { "A", 5 }, { "B", 2 }, { "C", 4 }, { "D", 8 } };
    String columnNames[] = { "Item", "Value" };
    TableModel model = new DefaultTableModel(data, columnNames) {
      public Class<?> getColumnClass(int column) {
        return getValueAt(0, column).getClass();
      }
    };
    JTable table = new JTable(model);

    RowFilter<Object, Object> filter = new RowFilter<Object, Object>() {
      public boolean include(Entry entry) {
        Integer population = (Integer) entry.getValue(1);
        return population.intValue() > 3;
      }
    };

    TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model);
    sorter.setRowFilter(filter);
    table.setRowSorter(sorter);
    JScrollPane scrollPane = new JScrollPane(table);
    JFrame frame = new JFrame("Filtering Table");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(scrollPane);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}