How do I set the JTable’s selection mode?

By Wayan in Swing 0 Comment

There are three selection modes available in the JTable component. The selection mode can be a single selection, a single interval selection or a multiple interval selection. To set the selection mode we call the JTable.setSelectionMode() method and pass one of the following value as the parameter:

  • ListSelectionModel.SINGLE_SELECTION
  • ListSelectionModel.SINGLE_INTERVAL_SELECTION
  • ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
package org.kodejava.swing;

import javax.swing.*;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumnModel;
import java.awt.*;

public class TableSelectionModeDemo extends JPanel {
    public TableSelectionModeDemo() {
        initializePanel();
    }

    public static void showFrame() {
        JPanel panel = new TableSelectionModeDemo();
        panel.setOpaque(true);

        JFrame frame = new JFrame("JTable Single Selection");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setContentPane(panel);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(TableSelectionModeDemo::showFrame);
    }

    private void initializePanel() {
        this.setLayout(new BorderLayout());

        JTable table = new JTable(new PremiereLeagueTableModel());
        TableColumnModel columnModel = table.getColumnModel();
        columnModel.getColumn(0).setPreferredWidth(200);

        // Settings table selection mode. We can use the following
        // three constants to define the selection mode.
        //
        // - ListSelectionModel.SINGLE_SELECTION
        // - ListSelectionModel.SINGLE_INTERVAL_SELECTION
        // - ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
        table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

        JScrollPane pane = new JScrollPane(table);
        this.add(pane, BorderLayout.CENTER);
        this.setPreferredSize(new Dimension(500, 500));
    }

    static class PremiereLeagueTableModel extends AbstractTableModel {
        // TableModel's column names
        private final String[] columnNames = {
                "CLUB", "MP", "W", "D", "L", "GF", "GA", "GD", "PTS"
        };

        // TableModel's data
        private final Object[][] data = {
                {"Chelsea", 8, 6, 1, 1, 16, 3, 13, 19},
                {"Liverpool", 8, 5, 3, 0, 22, 6, 16, 18},
                {"Manchester City", 8, 5, 2, 1, 16, 3, 13, 17},
                {"Brighton", 8, 4, 3, 1, 8, 5, 3, 15},
                {"Tottenham", 8, 5, 0, 3, 9, 12, -3, 15}
        };

        public int getRowCount() {
            return data.length;
        }

        public int getColumnCount() {
            return columnNames.length;
        }

        public Object getValueAt(int rowIndex, int columnIndex) {
            return data[rowIndex][columnIndex];
        }
    }
}
JTable Selection Mode Demo

JTable Selection Mode Demo

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