如何在列表中匹配电话号码？

解决方法

下面的示例演示如何使用phone.matches(phoneNumberPattern) 方法在一个列表中匹配到电话号码。

public class MatchPhoneNumber {
   public static void main(String args[]) {
      isPhoneValid("1-999-585-4009");
      isPhoneValid("999-585-4009");
      isPhoneValid("1-585-4009");
      isPhoneValid("585-4009");
      isPhoneValid("1.999-585-4009");
      isPhoneValid("999 585-4009");
      isPhoneValid("1 585 4009");
      isPhoneValid("111-Java2s");
   }
   public static boolean isPhoneValid(String phone) {
      boolean retval = false;
      String phoneNumberPattern = 
      "(\d-)?(\d{3}-)?\d{3}-\d{4}";
      retval = phone.matches(phoneNumberPattern);
      String msg = "NO MATCH: pattern:" + phone
      + "
 regex: " + phoneNumberPattern;
      if (retval) {
         msg = " MATCH: pattern:" + phone 
         + "
 regex: " + phoneNumberPattern;
      }
      System.out.println(msg + "
");
      return retval;
   }
}

结果

上面的代码示例将产生以下结果。

MATCH: pattern:1-999-585-4009
	    regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
MATCH: pattern:999-585-4009
	    regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
MATCH: pattern:1-585-4009
	    regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
NOMATCH: pattern:1.999-585-4009
 regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
NOMATCH: pattern:999 585-4009
 regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
NOMATCH: pattern:1 585 4009
 regex: (\d-)?(\d{3}-)?\d{3}-\d{4}
NOMATCH: pattern:111-Java2s
 regex: (\d-)?(\d{3}-)?\d{3}-\d{4}