    private static String changeFourOctetIpAddress(final String ipAddress, final String fourOctet) {
        //カンマ区切りで取得
        final String[] split = ipAddress.split("\\.");
        return String.format("%s.%s.%s.%s", split[0], split[1], split[2], fourOctet);
    }

othubo kenji @othubo

SE三年目、自分用のメモに使います

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