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                # 驗證商標符號的 Java 正則表達式 > 原文: [https://howtodoinjava.com/regex/java-regex-match-trademark-symbol/](https://howtodoinjava.com/regex/java-regex-match-trademark-symbol/) 在此 java 正則表達式示例中,我們將學習匹配商標符號`?`。 Unicode 代碼點`U+2122`代表“商標符號”字符。 您可以將其與“`\u2122`”,“`\u{2122}`”或“`\x{2122}`”匹配,具體取決于您使用的正則表達式。 > **解決方案 Java 正則表達式:`\u2122`** ```java String data1 = "Searching in trademark character ? is so easy when you know it."; ? String regex = "\u2122"; ? Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE); ? Matcher matcher = pattern.matcher(data1); ? while (matcher.find()) ? { ?? ? System.out.print("Start index: " + matcher.start()); ?? ? System.out.print(" End index: " + matcher.end() + " "); ?? ? System.out.println(matcher.group()); ? } } Output: Start index: 33 End index: 34 ? ``` **祝您學習愉快!**
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