public static boolean is4xx()

in java/src/main/java/com/aliyun/teautil/Common.java [520:525]

• 6 lines of code
• 4 McCabe index (conditional complexity)

    public static boolean is4xx(Number code) {
        if (null == code) {
            return false;
        }
        return code.intValue() >= 400 && code.intValue() < 500 ? true : false;
    }