java pop方法
ArrayDeque类pop()方法 (ArrayDeque Class pop() method)
pop() Method is available in java.lang package.
pop()方法在java.lang包中可用。
pop() Method is used to pop or return an element from the stack denoted by this deque.
pop()方法用于从此双端队列表示的堆栈中弹出或返回一个元素。
pop() 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.
pop()方法是一种非静态方法,只能通过类对象访问,如果尝试使用类名称访问该方法,则会收到错误消息。
pop() Method may throw an exception at the time of popping an element.
pop()方法可能会在弹出元素时引发异常。
NoSuchElementException: This exception may throw when this deque is "blank".
NoSuchElementException :如果此双端队列为“空白”,则可能引发此异常。
Syntax:
句法:
public T pop();
Parameter(s):
参数:
It does not accept any parameter.
它不接受任何参数。
Return value:
返回值:
The return type of the method is T, it returns an element at the front of this deque.
方法的返回类型为T ,它返回此双端队列的前面的元素。
Example:
例:
// Java program to demonstrate the example
// of T pop() method of ArrayDeque
import java.util.*;
public class PopOfArrayDeque {
public static void main(String[] args) {
// Creating an ArrayDeque with initial capacity of
// storing elements
Deque < String > d_queue = new ArrayDeque < String > (10);
//By using add() method to add elements
//in ArrayDeque
d_queue.add("C");
d_queue.add("C++");
d_queue.add("Java");
d_queue.add("Php");
d_queue.add("DotNet");
// Display Deque Elements
System.out.println("d_queue before pop(): ");
System.out.println("ArrayDeque Elements = " + d_queue);
System.out.println();
// By using pop() method to remove and return the
// element at the first position in ArrayDeque
String ele = d_queue.pop();
// Display Returned Elements
System.out.println("d_queue.pop() : " + ele);
System.out.println();
// Display Deque Elements
System.out.println("d_queue after pop(): ");
System.out.println("ArrayDeque Elements = " + d_queue);
}
}
Output
输出量
d_queue before pop():
ArrayDeque Elements = [C, C++, Java, Php, DotNet]
d_queue.pop() : C
d_queue after pop():
ArrayDeque Elements = [C++, Java, Php, DotNet]
翻译自: https://www.includehelp/java/arraydeque-pop-method-with-example.aspx
java pop方法
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