LinkedBlockingDeque的removeLast()方法返回并删除Deque容器尾部的元素。如果Deque容器为空,则此方法将引发NoSuchElementException。
用法:
public E removeLast()
参数:此方法不接受任何参数。
返回值:此方法返回Deque容器的尾部。
异常:如果Deque为空,则该函数将引发NoSuchElementException。
以下示例程序旨在说明LinkedBlockingDeque的removeLast()方法:
示例1:
// Java Program to demonstrate removeLast()
// method of LinkedBlockingDeque
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws InterruptedException
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<Integer> LBD
= new LinkedBlockingDeque<Integer>();
// Add numbers to end of LinkedBlockingDeque
LBD.add(7855642);
LBD.add(35658786);
LBD.add(5278367);
LBD.add(74381793);
// print Dequeue
System.out.println("Linked Blocking Deque: " + LBD);
// removes the last element and prints it
System.out.println("Linked Blocking Deque: " +
LBD.removeLast());
// prints the Deque
System.out.println("Linked Blocking Deque: " + LBD);
}
}
输出:
Linked Blocking Deque: [7855642, 35658786, 5278367, 74381793] Linked Blocking Deque: 74381793 Linked Blocking Deque: [7855642, 35658786, 5278367]
示例2:
// Java Program to demonstrate removeLast()
// method of LinkedBlockingDeque
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws NoSuchElementException
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<Integer> LBD
= new LinkedBlockingDeque<Integer>();
// Add numbers to end of LinkedBlockingDeque
LBD.add(7855642);
LBD.add(35658786);
LBD.add(5278367);
LBD.add(74381793);
// print Dequeue
System.out.println("Linked Blocking Deque: " + LBD);
// Deque is empty
LBD.clear();
// throws an exception
LBD.removeLast();
}
}
输出:
Exception in thread "main" java.util.NoSuchElementException at java.util.concurrent.LinkedBlockingDeque.removeLast(LinkedBlockingDeque.java:462) at GFG.main(GFG.java:29)
参考: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/LinkedBlockingDeque.html#removeLast–
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注:本文由纯净天空筛选整理自gopaldave大神的英文原创作品 LinkedBlockingDeque removeLast() method in Java。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。