// strings/Resetting.java
// (c)2021 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 Resetting {
  public static void
  main(String[] args) throws Exception {
    Matcher m = Pattern.compile("[frb][aiu][gx]")
      .matcher("fix the rug with bags");
    while(m.find())
      System.out.print(m.group() + " ");
    System.out.println();
    m.reset("fix the rig with rags");
    while(m.find())
      System.out.print(m.group() + " ");
  }
}
/* Output:
fix rug bag
fix rig rag
*/