question: public static int eval ( String url , String text ) throws IOException { String returnValue = null ; if ( url . startsWith ( "http:" ) ) { returnValue = doHttp ( url , text ) ; } else if ( url . startsWith ( "bsh:" ) ) { returnValue = doBsh ( url , text ) ; } else throw new IOException ( "Unrecognized URL type." + "Scheme must be http:// or bsh://" ) ; try { return Integer . parseInt ( returnValue ) ; } catch ( Exception e ) { return 0 ; } }
target:  Evaluate text in the interpreter at url, returning a possible integer return value.