检查字符串是否包含特殊字符

Question

如何检查字符串是否包含特殊字符，例如：

[,],{,},{,),*,|,:,>,

Answer 1

如果您希望密码中包含字母，特殊字符和数字（至少8位数字），那么使用此代码，即可正常运行public static boolean Password_Validation(String password)&nbsp;{&nbsp; &nbsp; if(password.length()>=8)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; Pattern letter = Pattern.compile("[a-zA-z]");&nbsp; &nbsp; &nbsp; &nbsp; Pattern digit = Pattern.compile("[0-9]");&nbsp; &nbsp; &nbsp; &nbsp; Pattern special = Pattern.compile ("[!@#$%&*()_+=|<>?{}\\[\\]~-]");&nbsp; &nbsp; &nbsp; &nbsp; //Pattern eight = Pattern.compile (".{8}");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Matcher hasLetter = letter.matcher(password);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Matcher hasDigit = digit.matcher(password);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Matcher hasSpecial = special.matcher(password);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;return hasLetter.find() && hasDigit.find() && hasSpecial.find();&nbsp; &nbsp; }&nbsp; &nbsp; else&nbsp; &nbsp; &nbsp; &nbsp; return false;}