[queue] Forum Topics

how to come up with a code to class queue and circular queue

I want to create a queue that holds certain information. I want it to hold multiple peices of information like below. Name, Age, Race, Sex. How can i create a queue FIFO. that holds multiple pieces of information like this that i can access or add into? Thanks!

so i got a class going for making and showing tree elements, i need some help with the following: i need to display the leaves and the height of the tree. here is the code: // ar.cpp #include <iostream> #include <stdlib.h> using namespace std; class nod { public: char inf; …

I am trying to print my queue which has values in it. Right now i have this. for(int i = 1; i<ReadyQueue.size(); i++) { } But i am stuck now because i have no idea how to print a queue without popping it off the front. So now i am …

I have a class below class CPU { public: void setPID (int a) { PID = a; } int retrievePID() { return PID; } private: int PID; }; And i am curious if you can create a queue into this class? I am trying to queue in a value into …

public: Queue() : front(0), back(0) {} void put(TreeNode *ptn) { ListNode *tmp = new ListNode(ptn, 0); if (back == 0) front = tmp; else back->next = tmp; back = tmp; } TreeNode *get() { assert(front); TreeNode *result = front->ptn; ListNode *tmp = front->next; delete front; front = tmp; if (front …

I need to widdle down a queue of people until one person remains in the queue, that person is the chosen person for a task. The mothod I am writing take the queue of people and a number, which represents a number drawn from a hat. Then the queue is …

Coding for C++ program to search a given element in a circular queue

Hi, In the legacy implementation, there is a Queue (which stored the PDUs) which need to be retransmitted. The queue has been implementated as stl map (c++). So the last element in the Queue may not be the largest SN, as per transmit window. Is there any easy way to …

Looking to test my library and implementing it so that insert function can assign the index of the rear in th e ring after the items are inserted in ring class CircularQueue: def __init__(self, size): """ ------------------------------------------------------- Initializes an empty queue. Data is stored in a list. ------------------------------------------------------- Postconditions: Initializes …

I have a question about how the message loop works in a windows application [code] while ( GetMessage(&msg, NULL, 0, 0) ) { TranslateMessage(&msg); DispatchMessage(&msg); } [/code] Does the windows o/s maintain a message queue that the app retrieves a message from the front of then dispatch it bck to …

Hi Team, Im reading Collections. It is mentioned that while intialising priority queue, it uses natural ordering by default. But my output is not like that. Below is my code and output. public class BackedCollections { public static void main(String[] args) { PriorityQueue<Integer> pq = new PriorityQueue<Integer>(); pq.offer(3); pq.offer(1); pq.offer(5); …

This code is working but i want my added words to show in vertical because its output is shown in horizontal if two or more words is inserted. Can you help me to improve my program? Here are the codes... /** * Write a description of class Stacks here. * …

Dear programmer, A pharmacy needs to automate drug inventory management system. Every drug has chemical Name, Chemical Composition, date of manufacturing, expiry date, and country of origin, quantity, category and others. The pharmacy has a policy to dispose expired drug before use. However, it is not an easy task to …

Hi, Firstly, forgive us for posting such noob question, we are still new at PHP/web development. We are not sure what's the proper approach for the problem we are working on. Basically we are building a system where user could program their hardware board online: The user will upload their …

there is a very frustrating problem with my queue linked list. the functions all work its just that after enqueue, dequeue or display the menu displays along with "Enter choice : Only one of the above can be your choice ". whats wrong? #include <stdio.h> #include <conio.h> #include <ctype.h> #include …

int numLines = 0; string unused; while (getline(users, unused)) { ++numLines; } cout << numLines << " Clients Found" << endl; //begin the search string search; string line; while(client.empty()) { cout << "Queue: "; //Display What The User Typed getline(cin,search); //Make it capital transform(search.begin(), search.end(),search.begin(), ::toupper); cout << search << …

A queue is a restricted data structure that allows only the following operations: a.Enqueue" an item at the end" of the queue. b.Dequeue" an item from the beginning" of the queue. These should correlate with your intuitive notion of a queue (line) in the physical world. In queues the first …

I have a problem when I do my task. task: Made a program about queue in Bank teller system. Teller A if deposit <=10million, teller B > 10million the count of customer(queue) is random and the price if deposit is random too. output: how much customers,time and total transaction at …

Hey Daniweb, I have recently started working with threads in the c++11 library. I started with a simple dispatch mechanism where I have a queue and that would get passed to the threads and the threads would take turns emptying the queue. Since each thread needs to share the queue …

there is a large busy cosmetic store. In store, for billing, there are four counters with four tellers (who deal payment etc) . A customer comes to the store and collects the things he/she wants to purchase and go to one of the counters to pay for purchase. If there …

Hi all - I need to write a program that reads in an array of strings from a file and uses a radixSort method to sort and print the array based on what characters they are composed of. The implementation should be able to handle strings of characters. The characters …

Hello, i need to implement priority queue using a binary search tree, i need some one to help me?

ProducerConsumer_Using_ExecutorService class in a for loop initiate producer consumer threads using worker threads from ExecutorServiceThreadPool class. consumer thread takes an element from queue adding it to ArrayList consumerdata. Seems that consumerdata has no elements. why is that; Both producer - consumer threads seem to work. import java.util.ArrayList; import java.util.Iterator; public …

I am trying to create Dijkstra's algorithm for a weighted graph, and have a flaw, I believe, in the implementation of the basic algorithm. It only visits the nearest nodes, checks the edges, but nothing else. Right now, I'm afraid I'm too close to this to see what's going on. …

Can someone please tell me why I keep getting a stack overflow when I try to create nodes in a priority queue? class Node { public int frequency; // data item (key) public char character; // data item public Node leftChild; // this node's left child public Node rightChild; // …

I don't know why I'm having such a problem with this, basically, I want to have a Queue that is constantly running during the program called "Worker" this then works, however, every 10 seconds or so.. Another method called "Process" comes in and processes the data. Let's assume the following, …

I am tryinh to send a number 123456 on a MSMQ. What goes onto the queue is 46 bytes as it is in XML. Another application is also writing to the queue and it only sends 6 Bytes to represent the number. I have tried putting the queue formatter into …

Hello I ma trying to practice on Data structure using java. I solved a lot of problems but this one looks interesting but I need some help understanding what I really have to do ... > write a program that simulates the operation of a busy airport that has only …

Whenever I try to run this code in turbo c++ 4.5 I recieve an error "General Protection Exception List.c 60 List(2) 0x24DF:0x0157 processor Fault" whereas when the same Program is run in Turbo c++ 3 Dos version It Compiles and Runs Propely without any error. Please Help. #include <stdio.h> #include …

Hello i implemented this FIFO queue: #include <stdio.h> void enqueue(int *, int); int dequeue(int *); int qempty(void); int head = 0; int tail = 0; int qerror(void); #define N 4 int main(void) { int i = 0; int v[N]; while (i < 10) { enqueue(v, i); i++; } while (!qempty()) …

[Version 1](http://www.daniweb.com/software-development/java/threads/462737/generic-resizing-circular-array-.-do-i-need-to-implement-iterable-) had quite a few problems that i didnt think about. A lot of them were pointed out in the replies. I tried to correct them as best as i could to make this code. However , I'm having some doubts regarding what to do while implementing the Collection …

Since the underlying data-structure used here is an array , which is itself iterable via `for-each()` , i'm wondering how much benefit implementing `Iterable` will provide here. I would appreciate if someone could review my code and suggest any further improvements. **Code:** import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; class ResizingCircularArray<E> …

8) what is the reason for disabling the ssid broadcasting and changing the default ssid on a wireless access point? a)wireless clients must then have ssid manually configured to connect to the wireless network. b)he accesses point stops broadcasting its own mac address thus preventing unauthorized wireless clients from connecting …

i've being trying to fix the error in my code for quite some time but am unable to resolve one or two of the errors like expected primary-expression before 'public' main.cpp:211:22: error: expected ';' before 'public' main.cpp:216:23: error: expected '}' before 'else' i am a beginner in programming # include<iostream> …

Dear all I have a private MSMQ on a server in workgroup mode (SBS 2011) On a client I can see the queue using System.Messaging.MessageQueue.GetPrivateQueuesByMachine(servername) and am able to read the name of the queue. I am able to write to the queue but am unable to retrieve anything from …

//Author: Frank R. Mendez //Title: Object Oriented Queue //Description: This is program uses double linked list to store data in the queue its functions are enqueu,dequeue and display queue. //Hope it can help you in you future projects. Good vibes to all programmers! #include <iostream> using namespace std; struct Node …

I have 2 processes (producer and consumer) sharing an int deque in shared memory, I have the producer process put 2 numbers in the deque and then it gets in a wait state losing its mutex lock. I then have the consumer process removing the numbers and printing them. It …

My account with Programming Forums has been activated but I cannot post in forums. It is saying that I am in moderation queue. I just a few days ago and would really like to make use of the forum. Any assistance with this would be appreciated. papazulu

Hi, I am trying to read a CAN Stick with a USB interface and I am connected to a sensor module. I have a program which transfer sensor data from the embedded controller to the CAN Stick. There is a program which use an internal queue to transfer data from …

Im having a problem with the following exercise. I have the whole program working, however, the transaction time is not passing to the customer. The only element that this affects is the time that the customer leaves. Anny assistance would be greatly appreciated. Best, Dani Below are the 5 files …

Hi,I am a c++ beginner. I am using vs,and I got a problem in my code which check a sentence whether a palindrome or not. #include <iostream> #include <stack> #include <queue> using namespace std; int main () { bool palindrome = true; char character; StackType stack; Queue queue; char stackChar; …

I'm a little confused with an assignment here and i just needed someone to point me in the right direction. Design an inventory class that stores the following members: serialNum : An integer that holds a part’s serial number. manufactDate : A member that holds the date the part was …

hi there... first of all i dont know where to post this,but still its a java thing so i post it here.. ...i need help on this,,dnt know how to fix,, when i play video or a video chat,,it failed to load and have a java application error, down is …

I am writing a program for a clinic now. here is my code ,the problem now is I need to write 2 functions for my program The first function : is to capture time of registration The second function: is for treated time of patient -each patient can consult DR …

Help needed with a function problem I really cant solve. Why is it that RegOpenKey() returns error success even though it fails. First it fails to return a handle with a valid Registry key/address filling the key paramater with nothing 0 but returns 0 aswell indicating an error_success right? because …

Hi everyone, I am a C/C++ winapi developer and have to rewrite a "Dialog based" application in java, so that it will execute as an applet in any browser. My java skills are very few, since my knowledge is limited to past college classes. The application is not a large …

Well I have a question and not sure if it's right. Here's the question(Long one). Applications. Build a class called Precinct. The record for a voter will consist of aname (String) and a political party(Boolean)(Two party). The SignInQueue method takes two parameters, a voter name and a party, and places …

Hello: I need some assistance with the following script configuration. The goal is to run a cronjob with my initial script which would run a mysql query and pull some account ids, it then would create an array of those values and through a for() loop execute a second script …

**how can i create a program that provides 3 types of data structures: linked list, stack and queue.which my program will provide a menu that a user can choose whether to use a linked list, stack or queue.** Example of output: Main Menu 1. Linked list 2. Stack 3. Queue …