algorithm-mode.rar_MODE算法

import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class BookList { private List<Book> bookList; private int index; private Iterator iterator; public BookList() { bookList = new ArrayList<Book>(); } //添加书籍 public void addBook(Book book) { bookList.add(book); } //删除书籍 public void deleteBook(Book book) { int bookIndex = bookList.indexOf(book); bookList.remove(bookIndex); } // //判断是否有下一本书 // public boolean hasNext() { // if(index >= bookList.size()) { // return false; // } // return true; // } // // //获得下一本书 // public Book getNext() { // return bookList.get(index++); // } // public List<Book> getBookList() { // return bookList; // } public Iterator Iterator() { return new Itr(); } private class Itr implements Iterator{ public boolean hasNext() { if(index >= bookList.size()) { return false; } return true; } public Object next() { return bookList.get(index++); } public void remove() { } } }