Java示例检查日期格式2

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
   public static void main(String args[]) {
      List dates = new ArrayList();
      dates.add("25/12/1990");
      dates.add("25/12/1990");
      dates.add("12/12/90");
      dates.add("05/02/1990");
      String regex = "^(1[0-2]|0[1-9])/(3[01]|[12][0-9]|0[1-9])/[0-9]{4}$";
      Pattern pattern = Pattern.compile(regex);

      for(Object date : dates) {
         Matcher matcher = pattern.matcher((CharSequence) date);
         System.out.println(date +" : "+ matcher.matches());
      }
   }
}