java replaceAll该怎么用?

2025-12-25 11:00:57
推荐回答(1个)
回答1:

  1. API如下:

    public String replaceAll(String regex, String replacement)
    regex: 需要匹配替换的正则

    replacement: 将匹配的串替换为此字符串

  2. 根据API可知,一个String对象即可调用此API

    参考以下例子:

    String s = new String("I love programming so much!");

    System.out.println(s);//I love programming so much!

    s = s.replaceAll("m{1,}", "xxxx_xxxx");

    System.out.println(s);//I love progrxxxx_xxxxxxxx_xxxxaing so xxxx_xxxxuch!

  3. 那么 tmpString = tmpString.replaceAll("\'", "\\\\'");

  4. 官方最新API地址docs.oracle.com/javase/8/docs/api/