1 package org.djunits.unit.unitsystem; 2 3 /** 4 * The international System of Units (SI). 5 * <p> 6 * Copyright (c) 2015-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br> 7 * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a> 8 * </p> 9 * @author <a href="https://www.tudelft.nl/averbraeck">Alexander Verbraeck</a> 10 */ 11 public abstract class SI extends UnitSystem 12 { 13 /** */ 14 private static final long serialVersionUID = 20140606L; 15 16 /** 17 * Protected constructor to avoid creating other (false) SI unit systems. 18 * @param abbreviationKey String; the abbreviation of the unit system, such as SI 19 * @param nameKey String; the name of the unit system, such as SI Base 20 */ 21 protected SI(final String abbreviationKey, final String nameKey) 22 { 23 super(abbreviationKey, nameKey); 24 } 25 26 }