protected static int indexOfComment(String line, String comments){
		int index = -1 ;
		if( (line == null) || line.isEmpty() ) return index;
		if( comments == null || comments.isEmpty() ) return index;
		
		if( comments.length() == 1 ) {
			index = line.indexOf(comments);
		} else{
			for(int i=0;i<line.length();i++){
				char ch = line.charAt(i);
				if( comments.indexOf(ch) != -1 ){
					index = i;  //find comment location!
					break;   //find comment char now!
				}
			}
		}
		
		return index;
	}