JavaArrayDequeremoveLast()方法详解及应用实例

ArrayDeque类removeLast()方法 (ArrayDeque Class removeLast() method)

• removeLast() method is available in java.lang package.

  removeLast()方法在java.lang包中可用。

• removeLast() method is used to return the last element but with removing the element from this deque.

  removeLast()方法用于返回最后一个元素&＃xff0c;但要从此双端队列移除该元素。

• removeLast() 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.

  removeLast()方法是一个非静态方法&＃xff0c;只能通过类对象访问&＃xff0c;如果尝试使用类名称访问该方法&＃xff0c;则会收到错误消息。

• removeLast() method may throw an exception at the time of returning and removing an element from this deque.

  在从此双端队列返回并删除元素时&＃xff0c; removeLast()方法可能会引发异常。

  NoSuchElementException: This exception may throw when this deque is "blank".

  NoSuchElementException &＃xff1a;如果此双端队列为“空白”&＃xff0c;则可能引发此异常。

Syntax:

句法&＃xff1a;

public T removeLast();


Parameter(s):

参数&＃xff1a;

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值&＃xff1a;

The return type of this method is T, it removes the last element with returning the element of this deque.

此方法的返回类型为T &＃xff0c;它通过返回此双端队列的元素来删除最后一个元素。

Example:

例&＃xff1a;

// Java program to demonstrate the example
// of T removeLast() method of ArrayDeque
import java.util.*;
public class RemoveLastOfArrayDeque {
public static void main(String[] args) {
// Creating an ArrayDeque with initial capacity of
// storing elements
Deque d_queue &＃61; new ArrayDeque (10);
// By using add() method to add elements
// in ArrayDeque
d_queue.add("C");
d_queue.add("C&＃43;&＃43;");
d_queue.add("Java");
d_queue.add("Php");
d_queue.add("DotNet");
// Display Deque Elements
System.out.println("d_queue before removeLast(): ");
System.out.println("ArrayDeque Elements &＃61; " &＃43; d_queue);
System.out.println();
// By using removeLast() method to remove
// the last element of the ArrayDeque
String ele &＃61; d_queue.removeLast();
System.out.println();
// Display Deque Elements
System.out.println("d_queue after removeLast(): ");
System.out.println("ArrayDeque Elements &＃61; " &＃43; d_queue);
}
}


Output

输出量

d_queue before removeLast():
ArrayDeque Elements &＃61; [C, C&＃43;&＃43;, Java, Php, DotNet]d_queue after removeLast():
ArrayDeque Elements &＃61; [C, C&＃43;&＃43;, Java, Php]


翻译自: https://www.includehelp.com/java/arraydeque-removelast-method-with-example.aspx