//Sample18_27.java
import java.util.regex.Pattern;
import java.util.regex.Matcher;
class Sample18_27{
    public static void main(String[] args){

      String regex = "(abc.*|xyz)";
      System.out.println(regex);
      System.out.println("----------");

      String[] strs = {
        "abc",
        "abcdefg",
        "dxyzabcfg",
        "xyz",
        "xyz1"
      };
      boolean boo;

      for(String str : strs){
        boo = str.matches(regex);
        System.out.println(str + "\t" + boo);
      }
    }
}