Arraylist的iterator用法
时间: 2023-05-30 13:03:55 浏览: 83
ArrayList的iterator用法如下:
1. 创建ArrayList对象
```
ArrayList<String> list = new ArrayList<String>();
```
2. 向ArrayList中添加元素
```
list.add("apple");
list.add("banana");
list.add("orange");
```
3. 获取Iterator对象
```
Iterator<String> iterator = list.iterator();
```
4. 遍历ArrayList中的元素
```
while(iterator.hasNext()){
String fruit = iterator.next();
System.out.println(fruit);
}
```
完整示例代码如下:
```
import java.util.ArrayList;
import java.util.Iterator;
public class ArrayListIteratorExample {
public static void main(String[] args) {
ArrayList<String> list = new ArrayList<String>();
list.add("apple");
list.add("banana");
list.add("orange");
Iterator<String> iterator = list.iterator();
while(iterator.hasNext()){
String fruit = iterator.next();
System.out.println(fruit);
}
}
}
```
输出结果为:
```
apple
banana
orange
```