We can implement the queue in any programming language like C, C++, Java, Python or C#, but the specification is pretty much the same. Basic Operations of Queue A queue is an object (an abstract data structure - ADT) that allows the following operations: Enqueue: Add an element to the ...
package com.zsy.datastructure.queue; import java.util.Scanner; /** * @author zhangshuaiyin */ public class ArrayQueueTest { public static void main(String[] args) { ArrayQueue queue = new ArrayQueue(3); // 接收输入字符 char key; Scanner scanner = new Scanner(System.in); boolean loop ...
ArrayQueue.java1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 package com.puple.atto.datastructure; public class ArrayQueue<E> implements Queue<E> { private Array<E> array; public ArrayQueue(int...
Queue作为一个接口,它声明的几个基本操作无非就是入队和出队的操作,具体定义如下: importjava.util.LinkedList;importjava.util.Queue;publicclassMain {publicstaticvoidmain(String[] args) {//add()和remove()方法在失败的时候会抛出异常(不推荐)Queue<String> queue =newLinkedList<String>();//添加元素queue....
1.运算方法是将数字入栈,如果碰到运算符号。则出栈将第一个出栈元素放在运算符右边,第二个出栈元素放入运算符左边 2.计算这个结果,并将这个计算结果入栈。重复以上操作。即可计算出逆波兰表达式的值。 3.栈的压入、弹出序列 代码语言:javascript 复制 importjava.util.Stack;publicclassSolution{public...
【Java】队列 && 循环队列 && Queue && Deque && BFS模板 队列 1.队列的实现 // "static void main" must be defined in a public class. class MyQueue { // store elements private List<Integer> data; // a pointer to indicate the start position...
packagecom.albertshao.ds.queue;// Data Structures with Java, Second Edition// by John R. Hubbard// Copyright 2007 by McGraw-Hillimportjava.util.*;publicclassTestStringQueue{publicstaticvoidmain(String[]args){Queue<String>queue=newArrayDeque<String>();queue.add("GB");queue.add("DE");queue....
Circular queue avoids the wastage of space in a regular queue implementation using arrays. In this tutorial, you will understand circular queue data structure and it's implementations in Python, Java, C, and C++.
TheQueueclass represents the queue data structure. Attributes front: Pointer to the front (head) of the queue. rear: Pointer to the rear (tail) of the queue. Methods Queue(): Constructor to initialize an empty queue. IsEmpty(): Checks if the queue is empty. ...
Java PriorityBlockingQueue class is concurrent blocking queue data structure implementation in which objects are processed based on their priority. The “blocking” part of the name is added to imply the thread will block waiting until there’s an item available on the queue....