[medium snippets] #medium #designPattern #IteratorPattern

ClientMain.java

public class ClientMain {
  public static void main(String[] args) {
    PetRepository pets = new PetRepository();
    for (Iterator iter = pets.getIterator(); iter.hasNext(); ) {
      String name = (String) iter.next();
      System.out.println(name);
    }
  }
}