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JCommon is a free general purpose Java class library that is used in several projects at www.jfree.org, including JFreeChart and JFreeReport.

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/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
 * USA.  
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 * 
 * ---------------------
 * SystemProperties.java
 * ---------------------
 * (C) Copyright 2002-2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: SystemProperties.java,v 1.5 2005/11/16 15:58:41 taqua Exp $
 *
 * Changes (from 26-Oct-2001)
 * --------------------------
 * 04-Mar-2002 : Version 1 (DG);
 * 08-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 *
 */

package org.jfree.ui.about;

import javax.swing.JTable;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

import org.jfree.ui.SortableTable;

/**
 * A utility class for working with system properties.
 *
 * @author David Gilbert
 */
public class SystemProperties {

    /**
     * Private constructor prevents object creation.
     */
    private SystemProperties () {
    }
    
    /**
     * Creates and returns a JTable containing all the system properties.  This method returns a
     * table that is configured so that the user can sort the properties by clicking on the table
     * header.
     *
     * @return a system properties table.
     */
    public static SortableTable createSystemPropertiesTable() {

        final SystemPropertiesTableModel properties = new SystemPropertiesTableModel();
        final SortableTable table = new SortableTable(properties);

        final TableColumnModel model = table.getColumnModel();
        TableColumn column = model.getColumn(0);
        column.setPreferredWidth(200);
        column = model.getColumn(1);
        column.setPreferredWidth(350);

        table.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);
        return table;

    }

}