package org.djunits.demo.examples;
   
   import java.util.Map;
   
   import org.djunits.unit.AreaUnit;
   import org.djunits.unit.ElectricalChargeUnit;
   import org.djunits.unit.FrequencyUnit;
   import org.djunits.unit.LengthUnit;
   import org.djunits.unit.LinearDensityUnit;
  import org.djunits.unit.MassUnit;
  import org.djunits.unit.Unit;
  import org.djunits.unit.VolumeUnit;
  
  /**
   * UnitPrefix.java.
   * <p>
   * Copyright (c) 2019-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a>.
   * <p>
   * @author <a href="https://www.tudelft.nl/averbraeck" target="_blank">Alexander Verbraeck</a>
   */
  public final class UnitPrefix
  {
      /** */
      private UnitPrefix()
      {
          // utility class
      }
  
      /**
   * @param args String[]; not used
  
       */
      public static void main(final String[] args)
      {
          print(LengthUnit.BASE.getUnitsByAbbreviation());
          print(AreaUnit.BASE.getUnitsByAbbreviation());
          print(VolumeUnit.BASE.getUnitsByAbbreviation());
          print(ElectricalChargeUnit.BASE.getUnitsByAbbreviation());
          print(MassUnit.BASE.getUnitsByAbbreviation());
          print(LinearDensityUnit.BASE.getUnitsByAbbreviation());
          print(FrequencyUnit.BASE.getUnitsByAbbreviation());
      }
  
      /**
   * @param unitMap Map&lt;String,? extends Unit&lt;?&gt;&gt;; the map to print
  
       */
      private static void print(final Map<String, ? extends Unit<?>> unitMap)
      {
          System.out.println();
          for (String ab : unitMap.keySet())
          {
              Unit<?> unit = unitMap.get(ab);
              System.out.println((ab + "        ").substring(0, 8) + (unit.getId() + "        ").substring(0, 8) + "  "
                      + (unit.getName() + "                        ").substring(0, 24) + "   "
                      + unit.getScale().toStandardUnit(1.0) + "   " + unit.getAbbreviations());
          }
      }
  }