Java tutorial
import java.util.regex.Matcher; import java.util.regex.Pattern; public class MainClass { static public final String poem = "PC Bird Cow Slow Doe Hole Joe\n" + "Shy Shift Sleep Do Down Doing.\n" + "Yes No How Whose\n"; public static void main(String[] args) { Matcher m = Pattern.compile("(?m)(\\S+)\\s+((\\S+)\\s+(\\S+))$").matcher(poem); while (m.find()) { for (int j = 0; j <= m.groupCount(); j++) System.out.print("[" + m.group(j) + "]"); System.out.println(); } } } /**/