public Shapefile(URL url){
  baseURL=url;
  myInputStream=null;
  try {
    URLConnection uc=baseURL.openConnection();
    myInputStream=new BufferedInputStream(uc.getInputStream());
  }
 catch (  Exception e) {
  }
}

public Shapefile ( URL url ) { baseURL = url ; myInputStream = null ; try { URLConnection uc = baseURL . openConnection ( ) ; myInputStream = new BufferedInputStream ( uc . getInputStream ( ) ) ; } catch ( Exception e ) { } }
creates and initialises a shapefile from a url
