import java.util.*;
import java.util.regex.*;
import java.text.*;

public class jTest {

	private Random rand = new Random();

	private String strSet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	private String str;

	private int count;

	public jTest() {

		while (true) {

			str = randString(6);

			Pattern pattern = Pattern.compile(str.charAt(0) + "{6}");
			Matcher match = pattern.matcher(str);

			while (match.find()) {

				System.out.println("Match Found!");
				System.exit(1);

			}

			count++;

			if ((count % 100000) == 0) {

				printStats();

			}

		}



	}

	public String randString(int strLen) {

		String str = "";

		for (int i = 0; i < strLen; i++) {

			str += strSet.charAt(rand.nextInt(26));

		}

		return str;

	}

	public void printStats() {

		System.out.println("\n\n\n\n-----------------");
		System.out.println("Match: " + str);
		System.out.println("Iterations: " + count);
		System.out.println(getDateTime());
		System.out.println("-----------------");

	}

	/**
	 * Method getDateTime()
	 * Taken From: http://www.java-tips.org/java-se-tips/java.util/how-to-get-current-date-time.html
	 */
    private String getDateTime() {

        DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        Date date = new Date();

        return dateFormat.format(date);

    }

	public static void main(String args[]) {

		new jTest();

	}

}