Java ConcurrentLinkedDeque pop()用法及代码示例

Java中的Java.util.ConcurrentLinkedDeque.pop()方法用于从ConcurrentLinkedDeque中弹出元素。该元素从ConcurrentLinkedDeque的顶部弹出，并从该元素中删除。

用法:

ConcurrentLinkedDeque.pop()

参数：该方法不带任何参数。

返回值：此方法返回存在于ConcurrentLinkedDeque顶部的元素，然后将其删除。

异常：如果ConcurrentLinkedDeque为空，则抛出EmptyConcurrentLinkedDequeException。

以下程序说明了Java.util.ConcurrentLinkedDeque.pop()方法：

示例1:

// Java code to illustrate pop() 
  
import java.util.*; 
import java.util.concurrent.*; 
  
public class ConcurrentLinkedDequeDemo { 
    public static void main(String args[]) 
    { 
        // Creating an empty ConcurrentLinkedDeque 
        ConcurrentLinkedDeque<String> CLD 
            = new ConcurrentLinkedDeque<String>(); 
  
        // Use add() method to add elements 
        CLD.push("Welcome"); 
        CLD.push("To"); 
        CLD.push("Geeks"); 
        CLD.push("For"); 
        CLD.push("Geeks"); 
  
        // Displaying the ConcurrentLinkedDeque 
        System.out.println("Initial ConcurrentLinkedDeque: "
                           + CLD); 
  
        // Removing elements using pop() method 
        System.out.println("Popped element: " + CLD.pop()); 
        System.out.println("Popped element: " + CLD.pop()); 
  
        // Displaying the ConcurrentLinkedDeque after pop operation 
        System.out.println("ConcurrentLinkedDeque after pop peration "
                           + CLD); 
    } 
}

输出：

Initial ConcurrentLinkedDeque: [Geeks, For, Geeks, To, Welcome]
Popped element: Geeks
Popped element: For
ConcurrentLinkedDeque after pop peration [Geeks, To, Welcome]

示例2:

// Java code to illustrate pop() 
  
import java.util.*; 
import java.util.concurrent.*; 
  
public class ConcurrentLinkedDequeDemo { 
    public static void main(String args[]) 
    { 
        // Creating an empty ConcurrentLinkedDeque 
        ConcurrentLinkedDeque<Integer> CLD 
            = new ConcurrentLinkedDeque<Integer>(); 
  
        // Use add() method to add elements 
        CLD.push(10); 
        CLD.push(15); 
        CLD.push(30); 
        CLD.push(20); 
        CLD.push(5); 
  
        // Displaying the ConcurrentLinkedDeque 
        System.out.println("Initial ConcurrentLinkedDeque: "
                           + CLD); 
  
        // Removing elements using pop() method 
        System.out.println("Popped element: " + CLD.pop()); 
        System.out.println("Popped element: " + CLD.pop()); 
  
        // Displaying the ConcurrentLinkedDeque after pop operation 
        System.out.println("ConcurrentLinkedDeque after pop operation "
                           + CLD); 
    } 
}

输出：

Initial ConcurrentLinkedDeque: [5, 20, 30, 15, 10]
Popped element: 5
Popped element: 20
ConcurrentLinkedDeque after pop operation [30, 15, 10]

相关用法

注：本文由纯净天空筛选整理自MerlynShelley大神的英文原创作品 ConcurrentLinkedDeque pop() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。