java - 正则表达式不喜欢 out#

Question

我编写以下代码来删除文本中的所有主题标签单词:

public static void main(String[] args) {

    System.out
            .println(removeHashtag("Got an infection in my eye. Pharmacist thinks something bitten me. This wouldn't have happened under Simeone. Wenger a#sarcasm #wengerin"));

}

public static String removeHashtag(String commentstr) {
    String arrWord[] = commentstr.split(" ");
    String sentenceWithoutHash = commentstr;
    System.out.println(sentenceWithoutHash);
    for (int i = 0; i < arrWord.length; i++) {
        if (arrWord[i].contains("#")) {
            String regex = "\\s*\\" + arrWord[i] + "\\b\\s*";
            sentenceWithoutHash = sentenceWithoutHash.replaceAll(regex, "");
        }
    }
    return sentenceWithoutHash;
}

但是此代码不适用于此文本

Got an infection in my eye. Pharmacist thinks something bitten me. This wouldn't have happened under Simeone. Wenger out#sarcasm #wengerin"

看来正则表达式不喜欢out#

有人可以帮忙吗？

Answer 1

您可以使用此正则表达式删除任何包含 # 的单词:

String rep = str.replaceAll("\\s*\\w*#\\w*\\s*", "");

RegEx Demo