java设计模式之迭代子模式

public interface Collection{

public Iterator iterator();

public Object get(int i);

public int size();

}

public interface Iterator{

public Obejct previous();

public Object next();

public boolean hasNext();

public Object first();

}

 

public class MyCollection implements Collection{

public String strings[] = {"A","B","C","D","E"};

@Override

public Iterator iterator(){

return new MyIterator();

}

}