天天看點

Java-判斷特殊字元

示例代碼(可運作)

String regEx = "[ _`~!@#$%^&*()+=|{}':;',\\[\\].<>/?~!@#¥%……&*()——+|{}【】‘;:”“’。,、?]|\n|\r|\t";

public static void main(String[] args) {
  System.out.println(hasSpecialChar("", regEx));
  System.out.println(hasSpecialChar(" ", regEx));
  System.out.println(hasSpecialChar("faf", regEx));
  System.out.println(hasSpecialChar("fa fa", regEx));
  System.out.println(hasSpecialChar("fa(", regEx));
}

public static boolean hasSpecialChar(String str, String regEx) {
  Pattern p = Pattern.compile(regEx);
  Matcher m = p.matcher(str);

  return m.find();
}      
String regEx1 = "[_`~!@#$%^&*()\\-+=|{}':;',\\[\\].<>/?~!@#¥%……&*()——+|{}【】‘;:”“’。,、?]|\n|\r|\t";