java string replace unescapes qu

	static public String replaceFirstOccurrence(String sContent, String sPattern, String sReplacement) {		String ret = sContent;		int nPattern = sPattern.length();		if ( nPattern != 0 ) {			int index = sContent.indexOf(sPattern);			if ( index != -1 ) {				ret = sContent.substring(0, index) + sReplacement						+ sContent.substring(index + nPattern, sContent.length());			}		}		return ret;	}