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                # Java 中的`Vector ListIterator` > 原文: [https://beginnersbook.com/2014/06/vector-listiterator-example-in-java/](https://beginnersbook.com/2014/06/vector-listiterator-example-in-java/) 我們可以使用[`ListIterator`](https://beginnersbook.com/2014/06/listiterator-in-java-with-examples/)在前進和后退方向上遍歷[`Vector`](https://beginnersbook.com/2013/12/vector-in-java/)。除此之外,我們還可以使用 `ListIterator` API 的方法執行其他幾個操作,例如顯示下一個和前一個元素的索引,替換元素值,在迭代期間刪除元素等。 #### 示例 這里我們有一個字符串向量,我們使用`ListIterator`在兩個方向上迭代它。 ```java import java.util.Vector; import java.util.ListIterator; public class VectorListIteratorDemo { public static void main(String[] args) { // Create a Vector Vector<String> vector = new Vector<String>(); //Adding elements to the Vector vector.add("Item1"); vector.add("Item2"); vector.add("Item3"); vector.add("Item4"); vector.add("Item5"); ListIterator litr = vector.listIterator(); System.out.println("Traversing in Forward Direction:"); while(litr.hasNext()) { System.out.println(litr.next()); } System.out.println("\nTraversing in Backward Direction:"); while(litr.hasPrevious()) { System.out.println(litr.previous()); } } } ``` **輸出:** ```java Traversing in Forward Direction: Item1 Item2 Item3 Item4 Item5 Traversing in Backward Direction: Item5 Item4 Item3 Item2 Item1 ``` **參考:** [`ListIterator` javadoc](https://docs.oracle.com/javase/7/docs/api/java/util/ListIterator.html) [`Vector` Javadoc](https://docs.oracle.com/javase/7/docs/api/java/util/Vector.html)
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