question: public static boolean isAbsoluteURI ( String systemId ) { if ( isWindowsAbsolutePath ( systemId ) ) { return false ; } final int fragmentIndex = systemId . indexOf ( '#' ) ; final int queryIndex = systemId . indexOf ( '?' ) ; final int slashIndex = systemId . indexOf ( '/' ) ; final int colonIndex = systemId . indexOf ( ':' ) ; int index = systemId . length ( ) - 1 ; if ( fragmentIndex > 0 ) index = fragmentIndex ; if ( ( queryIndex > 0 ) && ( queryIndex < index ) ) index = queryIndex ; if ( ( slashIndex > 0 ) && ( slashIndex < index ) ) index = slashIndex ; return ( ( colonIndex > 0 ) && ( colonIndex < index ) ) ; }
target:  Return true if the systemId denotes an absolute URI .