public String getValue(Keyword key) {
        String value = "";
        if (key.equals(Keyword.CONTENT)) {
            value = content;
        } else if (key.equals(Keyword.START)) {
            value = start;
        } else if (key.equals(Keyword.END)) {
            value = end;
        } else if (key.equals(Keyword.TYPE)) {
            value = String.valueOf(type);
        } else if (key.equals(Keyword.COMPLETED)) {
            value = String.valueOf(isCompleted);
        } else if (key.equals(Keyword.ARCHIVED)) {
            value = String.valueOf(isArchived);
        } else if (key.equals(Keyword.ALLDAY)) {
            value = String.valueOf(isAllDayTask);
        }
        return value;
    }