🚀 go-pugleaf

Dana Scott Kaufman wrote in message <34F6EFF8.F88BE2DD@ix.netcom.com>...
>What is the best way to save settings a Java program will use to
>configure itself each time it runs?


Use properties and .INI files.  They are much like Win16/32 but there are no
sections, just
keys and values.

Here are some snips:

  private void buildProperties
    ()
  {
/* defaults for all properties
os - just in case */

    Properties propDefault = new Properties();

    propDefault.put( "searchbase", "." );
    propDefault.put( "os", "Win32" );

    propDefault.put( "bigshown", "false" );
    propDefault.put( "bigsize", "12" );
    propDefault.put( "bigtype", "ITALIC" );

    propDefault.put( "known_n", "1" );
    propDefault.put( "known_1", ".txt" );

    propDefault.put( "viewPADonly", "false" );

    m_Properties = new Properties( propDefault );

/* read file */

    try
    {
      FileInputStream f = new FileInputStream("ProExplore.ini");
      m_Properties.load( f );
    }
    catch( Exception e )
    {}

    return;
  }


/* this is easy */

  public void save()
  {
    try
    {
      FileOutputStream f = new FileOutputStream("ProExplore.ini");
      m_Properties.save( f, "hehe" );
    }
    catch( Exception e )
    {}

    return;
  }

/* give access to applications properties to a frame for instance */

  public Properties getAppProperties()   {
    return m_Properties;
  }

/* use them in a dialog */

  public Frame1( Explore app )
  {
    String sWork;

    m_Parent = app;

    sWork = m_Parent.getAppProperties().getProperty("viewPADonly");
    m_bShowOnlyPAD = Boolean.valueOf( sWork ).booleanValue();
    sWork = m_Parent.getAppProperties().getProperty("bigshown");
    m_bViewBigFont = Boolean.valueOf( sWork ).booleanValue();

/* ..... */

    return;
}


/* save them in exit of frame */

  private void saveProperties()
  {
    String sWork;

    sWork = (new Boolean( m_bViewBigFont )).toString();
    m_Parent.getAppProperties().put( "bigshown", sWork );

    sWork = (new Boolean( m_bShowOnlyPAD )).toString();
    m_Parent.getAppProperties().put( "viewPADonly", sWork );

    m_Parent.save();

    return;
  }


bye,
Jim