private void decideUILookAndFeel(MainOptions options){
  try {
    boolean systemPlaf=false;
    systemPlaf=options.system_plaf;
    String systemPlafReq=System.getenv("systemplaf");
    if (systemPlafReq != null && systemPlafReq.equalsIgnoreCase("true"))     systemPlaf=true;
    if (systemPlaf)     UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
  }
 catch (  Exception exc) {
    exc.printStackTrace();
  }
}

private void decideUILookAndFeel ( MainOptions options ) { try { boolean systemPlaf = false ; systemPlaf = options . system_plaf ; String systemPlafReq = System . getenv ( "systemplaf" ) ; if ( systemPlafReq != null && systemPlafReq . equalsIgnoreCase ( "true" ) ) systemPlaf = true ; if ( systemPlaf ) UIManager . setLookAndFeel ( UIManager . getSystemLookAndFeelClassName ( ) ) ; } catch ( Exception exc ) { exc . printStackTrace ( ) ; } }
normally the look and feel should be the standard one , java , allow to set the systemplaf to have the system look and feel
