Search DaniWeb - concrete5

Re: This is me venting 5 Days Ago by jkon Dani , yes I also believe that you are responsible for the decline of DaniWeb .... BUUUT that was many years ago. We all foreseen the decline of "forums" back in early 2010's , there were many alternatives of what to do , and I strongly believe that you choose the wrong one. I will not repeat what you did or what you could be done … Is Wireless Network Possible in Concrete Building? 16 Years Ago by lightingD So I've recently become employed at an orginization who does not have their computers networked together. I was shocked, at first, but then they explained that hard wiring a network in this building would be expensive. Naturally I suggested wireless, after all my cell phone (and everyone elses) works anywhere in the building, even in the basement.… abstract and concrete classes 10 Years Ago by ThandekaN what is the difference between an abstract claa and a concrete class? Converting xml document to xml using xslt 12 Years Ago by pisces113 Hi there, I'm new to this web site and new to xml and xslt. I have the following document that I would like to transform using xml: [CODE]<?xml version="1.0" encoding="iso-8859-1" ?> - <Report Name="Conway"> - <table1> - <table1_JobNumber_Collection> - <table1_JobNumber JobNumber="… Combobox with duplicate entries 11 Years Ago by HibaPro i have a combobox that binding to table , what i need is wneh i retured the data i dont want to duplicate entries for example i have combobox with item BOQ Section and the item as the following "concrete , concrete, concrete , Utilities , utilities, concrete, AirCondiotioning ,utilities, concrete, AirCondiotioning" i just need to … I created a website and forgot how to center it. 11 Years Ago by joseavelar91 I created a website and forgot how to center it. I been using dreamweaver cs5.5 I would appreciate if someone could help me. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> … Inheritance and pure virtual functions 14 Years Ago by Carrots Hi, I'm having trouble understanding how I should use pure virtual functions in my inheritance tree. I've drawn a class diagram which shows what I'm trying to achieve: [img]http://i42.tinypic.com/2qjdttd.jpg[/img] Here is what I've written: [B]main.cpp[/B] [code] #include <iostream> #include <string> #include <list… Help - How to retrieve data from a std::list containing boost::shared_ptr 12 Years Ago by badboy11 I need helping trying to retrieve data held in a [CODE]std::list<boost::shared_ptr<boost::any>>[/CODE] I am working on a Singleton Controller class with a private [B]std::list[/B]. Client class(es) will be able to [B]Add/Remove/Edit[/B] concrete class objects to be used by the program through this Controller class. The reason for … Slicing problem 14 Years Ago by Carrots Hi there, I have a problem in that my derived concrete classes are loosing the data members which are part of my derived classes. I have wrote a simple program to show the problem. [B]GrandParent.h :[/B] [code=c++] #ifndef GRANDPARENT_H #define GRANDPARENT_H using namespace std; #include <string> … Android Native - How to implement LifecycleOwner in a Service 2 Years Ago by dimitrilc ## Introduction ## When working with Services on Android, you might have ran into an issue where you would like to: 1. Use a concrete implementation of a Service (*from a built-in or third party library*). 2. Make the Service lifecycle-aware so that you can use coroutines with it. Many built-in Service classes are in Java and were introduced … Re: Inheritance and pure virtual functions 14 Years Ago by Carrots Hi thanks for replying. I'm trying to instantiate Parent (the concrete version) and Child and store pointers to those objects in the std::list. I know the names are slightly offputting, in my real program they are: [CODE] Vehicle : [B]Red car[/B] Blue car : [B]Blue Car 3speed[/B] : [B]Blue Car 4speed[/B]… Re: Slicing problem 14 Years Ago by Carrots Thanks for the advice. I have followed what you suggested: [code=c++] #ifndef GRANDPARENT_H #define GRANDPARENT_H using namespace std; #include <string> /******************************************************** Abstract base class ********************************************************/ class GrandParent { public: //constructor … Re: I created a website and forgot how to center it. 11 Years Ago by FakeTales if i was you i would include your css in a seperate file for example copy it all and paste it into a file called style.css , makes the webpage easier to read when looking at the sorce code , i would do the same with the javascript as well. i managed to get everything central by adding this to the css file #wrapper{ margin: 0 auto;… Changing abstract class to interface, causes problems with inherited classes? 13 Years Ago by gymangel812 I'm having a problem changing an abstract class to an interface. I changed the abstract class (Bounceable) to an interface but I'm not sure what I need to do with the concrete classes (Tennisball, Basketball) that implement the interface. The change to an interface is also affecting the output test program (PolyTest). Bounceable.java [code]/**… Which books first? opinion of well read computer scientists, or hobbyists 10 Years Ago by pwolf At the moment I am trying to decide which book to buy, there are many that I think would be very interesting, but some are most likely beyond me. The books in my list, along with my thoughts on them are: Concrete Mathematics (I believe this is probably too advanced for me at the moment, however I am revising mathematics and will want to pick this… Android Native - provide fake DataSources to Repositories in Unit Tests 1 Year Ago by dimitrilc ## Introduction ## In Android projects, **DataSource** classes act as entry points to interacting with local or remote data sources. Their dependencies tend to be HTTP clients, the database, or DAOs, and their dependents are usually **Repository** classes. In this tutorial, we will learn how to provide a fake **DataSource** to a **Repository **… How To Connect To Databases Using JDBC 1 Year Ago by dimitrilc ## Introduction ## When working on Java applications, it is very likely that you will run into JDBC at some point. While you are unlikely to have to work directly with JDBC when using frameworks, it is still important to know how the connection is established and how queries are sent, so can detect performance issues in your application. … Need help with more Inheritance problems 13 Years Ago by Geodude0487 So my teacher this semester is the worst I ever had, I can not get a hold of him at all for help on these labs I've been working on them and trying to get his help on them for the past 3 weeks but since it's an online class, the teacher and fellow classmates are very hard to get a hold of. We have a total of 6 labs in this chapter but I got 1 done… Abstract Classes 13 Years Ago by john butler here is one program which has 1 abstract class without abstract method. its also works fine. Then what the use of abstract class, any how it does not allow to create objects, we can use this with concrete class to implement method defined in abstract class which we have to extend the abstract class then why not directly in concrete class why need … Input() question 13 Years Ago by patton228 I have to add inputs just in case i have up to nine lines that i need to add feet values too. but im curious if i only have 5 lines to input is there a way to bypass the other inputs cause if i in put zero it has negative affects on the outcome. So i had to add this to change it back for me which id rather be able to by pass it some how with my … A Small but Strange Problem - Need Help 13 Years Ago by mattyd Hello. I am completing work on a commerce website and have noticed a small but strange error that I cannot seem to remedy. Each page has a footer that contains text; of course, this should align the same on each page view, but the problem is as follows: Alignment is correct on each page but the index page (please see attached screen shots:… Setting a variable from dropdown results 13 Years Ago by RGStrat So I have a script that is processing results of a form. What I'm trying to do is to set a variable by the results of a dropdown. This variable is a filename. Here is the PHP that processes it: [CODE]if ($industry = "Coal and Power") {$link = "Coal-and-Power-portfolio.pdf";} elseif ($industry == "Composting") … cant update sql table 12 Years Ago by gotboots Hi all, pretty new to sql. have made code already for showing, adding and deleting data from database but can't seem to make the update work. any help is much appreciated. here's what I have: [CODE]<html><body><form action="update.php" method="post"> <label>Person ID:<br></label> <… Re: cant update sql table 12 Years Ago by gotboots i made these changes, but still no luck. $select is now the variable for the where clause. note the top input name has also changed to select to give variable. Did work, and now doesn't again for some reason. no error messages, but doesnt update like its meant to yet. would it be better to have the delivery details in a seperate table? although … Content Layout disorder 11 Years Ago by davy_yg This is my web: [masterlink](http://www.masterlink.co.id/Rustoleum2.php) The content only looks good in 1280 x 800px, other than that it start being dislocated. I thought I already place the content inside a container which I located in the center no matter what the resolution is. The content suppose to follow the container, but this is not … Dynamically resolve and cast base to derived type at runtime 11 Years Ago by bunnyboy How can I cast a base class to a derived on at runtime. What I am trying to do is the following: I need a system which will hold the subscriptions, where a certain type of message, has an assigned Subscriber. When a message is received, it will bi forwarded to this system, which will do a lookup if there are any subscribers to this kind of message … How to write generic factory class 11 Years Ago by anish.anick Hi All, I have a factory which has some concrete sub classes for generating reports (.txt, .csv,.xls) I want to make the interface of the concrete classes to be generic so that i can pass in diff types of parameters (Instead of DataTable i need to use DataSet or some other class instance as argument). Here is my previous interface. … Idaho: Beyond the Potato with HP 11 Years Ago by Kerry W We might all imagine how many reams of paper HP must go through testing their printers before they hit the market, and how they must pass certain tests and get tweaked along the way. If you envision rooms full of printers and the smell of heated toner hitting the paper, you are not alone. At the Boise Idaho HP campus, there is so much more than I … Abstract Syntax 9 Years Ago by Slavi Hey guys, i am facing a small problem here, perhaps you could give me any hints with it. In one of my courses (Program analysis) we are using a language called "The While language" , it is simplified and I think only for education purposes. I am asked to make an abstract syntax out of the concrete one, during it in a language of my … Android Native - How to use WorkManager 2 Years Ago by dimitrilc ## Introduction ## WorkManager is the preferred method of managing background tasks on Android. It also includes convenient extensions for RxJava3 and Kotlin Coroutines. In this tutorial, we will learn how to use WorkManager as well as how to observe the background task with the debugging tool Background Task Inspector. ## Goals ## At the …