// strings/Finding.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
import java.util.regex.*;

public class Finding {
  public static void main(String[] args) {
    Matcher m = Pattern.compile("\\w+")
      .matcher(
        "Evening is full of the linnet's wings");
    while(m.find())
      System.out.print(m.group() + " ");
    System.out.println();
    int i = 0;
    while(m.find(i)) {
      System.out.print(m.group() + " ");
      i++;
    }
  }
}
/* Output:
Evening is full of the linnet s wings
Evening vening ening ning ing ng g is is s full full
ull ll l of of f the the he e linnet linnet innet nnet
net et t s s wings wings ings ngs gs s
*/