java 方法 示例_Java集合syncedList()方法与示例
java 方法 示例
集合類syncList()方法 (Collections Class synchronizedList() method)
synchronizedList() method is available in java.util package.
syncList()方法在java.util包中可用。
synchronizedList() method is used to return the synchronized view of the given list (l).
syncedList()方法用于返回給定列表( l )的同步視圖。
synchronizedList() method is a static method, it is accessible with the class name and if we try to access the method with the class object then also we will not get any error.
synchronizedList()方法是一個靜態方法,可以使用類名進行訪問,如果嘗試使用類對象訪問該方法,則也不會出現任何錯誤。
synchronizedList() method does not throw an exception at the time of returning a synchronized list.
返回同步列表時,syncedList ()方法不會引發異常。
Syntax:
句法:
public static List synchronizedList(List l);Parameter(s):
參數:
List l – represents the list to viewed in synchronized list.
列表l –表示要在同步列表中查看的列表。
Return value:
返回值:
The return type of this method is List, it returns synchronized view of the given list.
此方法的返回類型為List ,它返回給定列表的同步視圖。
Example:
例:
// Java program to demonstrate the example // of List synchronizedList() method of Collectionsimport java.util.*;public class SynchronizedListOfCollections {public static void main(String args[]) {// Instatiates a array list objectList < Integer > arr_l = new ArrayList < Integer > ();// By using add() method is to add// objects in an array list arr_l.add(10);arr_l.add(20);arr_l.add(30);arr_l.add(40);arr_l.add(50);// Display ArrayListSystem.out.println("Array List: " + arr_l);// By using SynchronizedList() method is to// represent the array list in synchronized viewCollection co = Collections.synchronizedList(arr_l);// Display Synchronized ArrayListSystem.out.println("Collections.synchronizedList(arr_l): " + arr_l);} }Output
輸出量
Array List: [10, 20, 30, 40, 50] Collections.synchronizedList(arr_l): [10, 20, 30, 40, 50]翻譯自: https://www.includehelp.com/java/collections-synchronizedlist-method-with-example.aspx
java 方法 示例
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