public String getSequence(String chromosomeName, int start, int end) throws Exception {
		twoBitParser.close();
		twoBitParser.setCurrentSequence(chromosomeName);
		return twoBitParser.loadFragment(start,end-start);
	}
public String getSequence ( String chromosomeName , int start , int end ) throws Exception { twoBitParser . close ( ) ; twoBitParser . setCurrentSequence ( chromosomeName ) ; return twoBitParser . loadFragment ( start , end - start ) ; }
Extract a sequence from a chromosome, using chromosomal coordinates

@param chromosomeName
@param start
@param end
@return the DNASequence from the requested coordinates.
@throws Exception