public void load() throws IOException {
  if (myFilename == null) {
    throw new IOException("No filename specified for PreferenceStore.");
  }
  FileInputStream in=new FileInputStream(myFilename);
  try {
    myProperties.load(in);
    myChanged=false;
  }
  finally {
    in.close();
  }
}

public void load ( ) throws IOException { if ( myFilename == null ) { throw new IOException ( "No filename specified for PreferenceStore." ) ; } FileInputStream in = new FileInputStream ( myFilename ) ; try { myProperties . load ( in ) ; myChanged = false ; } finally { in . close ( ) ; } }
load from the consturctor ' s registered filename , erasing the current store .
