PriorityQueue類clear()方法 (PriorityQueue Class clear() method)

• clear() method is available in java.util package.

  clear()方法在java.util包中可用。

• clear() method is used to remove all the objects from this PriorityQueue.

  clear()方法用于從此PriorityQueue中刪除所有對象。

• clear() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  clear()方法是一個非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• clear() method does not throw an exception at the time of clearing objects from the queue.

  從隊列中清除對象時， clear()方法不會引發異常。

Syntax:

句法：

public void clear();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is void, it returns nothing.

該方法的返回類型為void ，不返回任何內容。

Example:

例：

// Java program to demonstrate the example // of void clear() method of // PriorityQueueimport java.util.*; public class ClearOfPriorityQueue {public static void main(String args[]) {// Instantiate PriorityQueuePriorityQueue < String > pq = new PriorityQueue < String > ();// By using add() method is add// the given element into priority// queuepq.add("C");pq.add("C++");pq.add("JAVA");pq.add("PHP");pq.add("ANDROID");// Display PriorityQueueSystem.out.println("PriorityQueue: " + pq);// By using clear() method is to// remove all the existing elements// from this PriorityQueuepq.clear();// Display Updated PriorityQueueSystem.out.println("pq.clear(): " + pq);} }

Output

輸出量

PriorityQueue: [ANDROID, C, JAVA, PHP, C++] pq.clear(): []

翻譯自: https://www.includehelp.com/java/priorityqueue-clear-method-with-example.aspx

總結

以上是生活随笔為你收集整理的Java PriorityQueue clear（）方法与示例的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。