java replaceAll该怎么用？

java replaceAll该怎么用？

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

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!

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

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