How do I set the JTable’s selection mode?

By Wayan Saryada in Java 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.example.swing;

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

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

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

        JTable table = new JTable(new PremiereLeagueTableModel());

        //
        // 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.SINGLE_SELECTION);

        JScrollPane pane = new JScrollPane(table);
        this.add(pane, BorderLayout.CENTER);
        this.setPreferredSize(new Dimension(500, 150));
    }

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

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

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

    class PremiereLeagueTableModel extends AbstractTableModel {
        // TableModel's column names
        private String[] columnNames = {
                "TEAM", "P", "W", "D", "L", "GS", "GA", "GD", "PTS"
        };

        // TableModel's data
        private Object[][] data = {
                { "Chelsea", 5, 5, 0, 0, 21, 1, 20, 15 },
                { "Arsenal", 5, 3, 2, 0, 14, 4, 10, 11 },
                { "Manchester United", 5, 3, 2, 0, 14, 7, 7, 11 },
                { "Manchester City", 5, 2, 2, 1, 6, 2, 4, 8 },
                { "Tottenham Hotspur", 5, 2, 2, 1, 6, 4, 2, 8 }
        };

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

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

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

Wayan Saryada

Programmer, runner, recreational diver, currently living in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, Hibernate / JPA.

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