/* Java正規表現サンプル */

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

class JSample3_1{
  public static void main(String args[]){
    String str1 = "2009year";

    String regex1 = "(200(7|8|9))year";
    Pattern p1 = Pattern.compile(regex1);

    String regex2 = "(200(?:7|8|9))year";
    Pattern p2 = Pattern.compile(regex2);

    System.out.println("パターン : " + regex1);

    check(p1, str1);

    System.out.println("パターン : " + regex2);

    check(p2, str1);
  }

  private static void check(Pattern p, String target){
    Matcher m = p.matcher(target);

    if (m.find()){
      int start = m.start();
      int end = m.end();
      System.out.println("○ " + target);
      System.out.println("[全体] " + m.group());
      for (int i = 1 ; i <= m.groupCount(); i ++){
        System.out.println("[Group" + i + "] " + m.group(i));
      }
    }else{
      System.out.println("× " + target);
    }
  }
}