private String lines(int startLine,String s){
  String lines[]=s.split("\\r?\\n");
  return linesToString(startLine,lines);
}

private String lines ( int startLine , String s ) { String lines [ ] = s . split ( "\\r?\\n" ) ; return linesToString ( startLine , lines ) ; }
return substring starting with the line specified by startline ( 0 - based ) .
