解释器模式举例_lua解释器交互模式_动态编译与解释器模式(18)

迭代器接口：

public intece MyIterator<T> {    boolean hasNext();  //是否还有下一个元素    T next();           //得到下一个元素    T remove();}

具体的迭代器就是集合具体实现里面的迭代器内部类，下面是使用 ：

public class TestUse {    public static void main(String args[]){        //分别定义两种结构        MyList<String> array = new MyArrayList<String>();        MyList<String> link = new MyLinkedList<String>();        //添加数据        for(int i = 1;i < 15; i){            array.add(i"");            link.add(i"");        }        //数组操作        System.out.println(array.remove());        System.out.println(array.get(5));        System.out.println(array.remove(5));        System.out.println(array.get(5));        System.out.println(array.remove("7"));        System.out.println(array.set(0, "00"));        //使用迭代器        MyIterator<String> ai = array.iterator();        while(ai.hasNext())            System.out.print(ai.next()" ");        System.out.println();        System.out.println(link.remove());        System.out.println(link.get(5));        System.out.println(link.remove(5));        System.out.println(link.get(5));        System.out.println(link.remove("7"));        System.out.println(link.set(0, "00"));        //使用迭代器        MyIterator<String> li = link.iterator();        while(li.hasNext())            System.out.print(li.next()" ");        System.out.println();        System.out.println("a size="  array.size());        System.out.println("l size="  link.size());    }}

本文来自电脑杂谈，转载请注明本文网址：
http://www.pc-fly.com/a/jisuanjixue/article-33893-18.html