375 Archived Topics
Remove Filter  | Hi guys I wonder if you can help me with this as it's driving me absolutely crazy. So, I have a div, in the first screenshot which looks pretty much like a scale and can be rotated right up to 45 degrees and left up to -45 degrees  …  |
| | Chaps, I wonder if you can give me a hand with this. Here's the brief: "Create a program that draws 10 random filled shapes in random colors, position and sizes. Method paintcomponent should contain a loop that iterates 10 times. In each iteration, the loop should determine whether to draw …  |
| | Hello guys, I wonder if I could get some help with a project I'm planning to start. As you all probably know, I'm learning MVC and I've followed dozen of online tutorials, dipped in and out of many books but I got to the conclusion that I have to dive … |
| | Hello guys, A few days ago I was looking on the net for a good jquery tabbed navigation – I needed it for a project – and I have to say that what I found wasn’t really what I was hoping for. An awful lot of people seem to be … |
| | Hi there, I've come across an issue while trying to get all the records from a SQL database in java. A bit of necessary introduction here. I'm not using any framework just JDBC and the getAllBooks method is part of a REST call. The failing method is essentially doing this: … |
| | Hi guys, I am having an issue finding duplicates in an arrayList. Here is some code studentRecords.add(new Student("Jo", "Pip", "JP000", LocalDate.of(1999,9,23), Sex.FEMALE)); studentRecords.add(new Student("Tara", "Bot", "TB345", LocalDate.of(1991,9,1), Sex.FEMALE)); studentRecords.add(new Student("Mara", "Lewart", "ML456", LocalDate.of(1988,5,23), Sex.FEMALE)); studentRecords.add(new Student("Anna", "Clarke", "AC010", LocalDate.of(1999,1,1), Sex.FEMALE)); studentRecords.add(new Student("Frank", "Boia", "FB300", LocalDate.of(2001,8,13), Sex.MALE)); studentRecords.add(new Student("Anna", "Clarke", "AC010", … |
| | Hi chaps, I have a Dell XPS17, dual booting with Windows and Ubuntu on it. I have to give it away and therefore reinstall windows. Usually, I'd format the whole HD and reinstall Windows, but I don't have the Windows CD – it wasn't dispatched with the laptop unfortunately – …  |
| | Here is something interesting about `detach()` vs `remove()` in jquery that happened to me. As we know, `remove()` removed an element from the DOM wherease the` detach()` does the same thing but it keeps all the jquery events bound to the element to which the method is applied to. I …  |
| | Hi guys, I wonder if you can help. As I've started as a programmer, I've been told I have to practice OO a bit more. I've done the theory, but I think I will have to take another look at it. , Above all though, I have to do exercises. …  |
| | Guys, I am a little confused with the usage of the keyword model/Model in MVC, so I was hoping somebody could clarify a few aspects of it (needless to say internet searches didn't really help that much). Given this model: using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace Ebuy.Website.Tests.Models … |
| | I just wanted to share this with the community, in case anybody finds it useful. I'm learning ASP.NET and started with Web Forms and now I'm moving slowly to MVC. As I have just started with MVC - which is significantly different from Web Form - I've been looking for …  |
| | Hi there, I need to buy a new netbook for my sister. She isn't IT so I don't need a super expensive and powerful machine, she will just use it for word processing and browse the internet. Does anybody have any suggestion at all? I myself have a samsung nc10 …  |
| | Hello guys, a while back I posted something about what was needed to build an overtime app that stored data permanently on the server (here is the post https://www.daniweb.com/web-development/php/threads/467433/change-content-of-html-page-with-php) and I was told to use PHP. I have to say I've never got around that, but now I'm looking into … |
| | Hello guys, I hope you can clarify something for me please. I was looking into carousels, found an excellent one and replicated in my code (for reference this is the one I looked at, it’s really good and easy to understand https://tutsplus.com/lesson/the-obligatory-slider/). Anyway, I have implemented that and I thought … |
| | Hello all, I wonder if you can help me with this. I wanted to create a page which, among the other things, has a div with a lot of text inside. Below this div there will be 2 buttons. When viewed on a mobile, the height of this div become …  |
| | Hi chaps, I am looking for a not too difficult exercise which involves superclasses and subclasses (the java book I am reading doesn't really have any good one). So I was thinking about something like this: Create a superclass 2DimensionalShapes and 2 subclasses Rectangles and Triangles. I will then need … |
| | Chaps I have an interesting and odd problem. Today I had the brilliant(??) idea of using google chart https://google-developers.appspot.com/chart/interactive/docs/gallery/linechart#Loading for a site I am building. It is all nice and dandy till I placed the graph inside a hidden container, planning to add some jquery and slide the graph down … |
| | Hi I would be really interested to understand how exactly the toString() method works. I have read quite a bit about it, that it returns the string representation of an object, that the default one can be overridden with @Override etc etc. Let's have a look at some examples: @Override … |
| | Hi all it's that time again, java exercise! Mindful of what happened last time http://www.daniweb.com/software-development/java/threads/449525/building-a-simple-airline-reservation-system-exercise/ , this time I have decided that I want to have all the pseudocode done before I even start thinking about how to code the whole thing. This is what the exercise requires: > Create … |
| | HI all, I am a bit confused about right justifying and formatting strings and numbers in general, and I was wondering if somebody can clarify this for me please. Ok, so let's take an example: // Fig. 7.2: InitArray.java // Initializing the elements of an array to default values of … |
| | Hi I'm trying to create a script in powershell that finds a string in a file and then modifies it but I'm having issues matching the string I want. So, I'm trying to make sure that I can find this type of string |d where d is is any digit, …  |
| | Hi there, I am trying to do an exercise from a C++ book. It goes: Develop a program that will move the knight around an empty chessboard. The chessboard is represented by an 8-by-8 two-dimensional array [ICODE]board[][][/ICODE]. Each of the squares is initialized to 0. We describe each of the … |
| | I 'm building an application to store and retrieve books, but I have an issue with retrieving data from the db. I'm using REST and testing with postman. Everything works OK. Currently I have a series of methods written in Java at the backend like so @Override @POST @Path("/add") //@Produces("application/json") … |
| | Hi all, I have a question about updating two values in a sql table using a subquery. My database is called books and the below table books too: id title author location_id 11 Tera Netrear 4 14 Disser Bubu 1 15 Tenno Puoio 4 16 Oban Tyrone 5 18 Sisnobi … |
| | Hi there, I am totally new to Java script (just began to looking into it) and I would like to do something with the comment box on one of the website I am working on [url]http://antobbo.webspace.virginmedia.com/webediting/documents.htm[/url] Basically rather than that box at the bottom of the page I was thinking … |
| | Hi guys, I was trying to test a method which takes a user input, does something and then returns that input but I'm having some issues with it. I've attempted a few solutions, mostly described in SE, I will leaave them out of this post and discuss instead the one … |
| | So my new Asus UX305 has just arrived. I charged the battery till full and I'm now using the laptop. I'm planning to switch it off very soon, and then it occurred to me, do I have to break in the battery, or can I just use it as normal … |
| | Hi all, I'm having some issues with the Scanner not waiting for input from the keyboard. The first method processChoice takes the userChoice and the idea is that in the switch statement there is a call to a method getUserInputForProcessing that takes the action and there scanner takes an input … |
| | Hi all, I have an application which saves data (books details like book title, author and location) to a mySql db and performs CRUD operations. I thought I'd use hibernate to take care of the ORM side of things and everything was OK when it came to create a record, … |
| | Hi guys, I'm a little stuck with something here. Basically I have a a method which, given a List of Students will have to filter out those who are younger than 60yrs old and should return a List of Students who are over 60yrs old but I want this to … |
| | Hi guys, I wonder if this is something I could do on this forum. I've never worked with REST, so I thought that it could be a good exercise to try to develop a very small and simple Java application and try to make use of REST as well. I …  |
| | Hi guys, as part of an exercise I was involved with, I had to use the factory pattern to create a series of different objects, however I'd like to keep a list or map for what it matters of these objects and I'm getting a bit into troubles here. So … |
| | Hi guys, I was trying to sort an arrayList using a comparator but I didn't have much luck, or at least it seems like there is something slightly wrong with it. I have these objects in the arrayList employeeCollection.add(new Employee("Dan", 112)); employeeCollection.add(new Employee("Tim", 2)); employeeCollection.add(new Employee("Rick", 11)); employeeCollection.add(new Employee("Jack", 19)); … |
| | Hi guys, I seem to have an issue with a boolean method returining a value. Here is the code excerpt - irrelevant code omitted: public class StreamsTest { public static void main(String[] args) { String[] arr = new String[]{"a", "b", "c"}; //convert array to string with streams List<String> list = … |
| | Hi guys, I've got an issue with my angular application, I've got a form which is meant to create a new record (object) and push this object into an array. My set up is the following: I have a book.component.ts whic contains an array of IBooks as such: books: IBook[] … |
| | HI guys, as I was playing with observers today I came across something interesting. I have a program which keeps a list of users (Observers) and products (Observables) and the idea is that whenever the availability (that's a property of a product) changes the Observers are notified of this change. … |
| | hi guys, I've come across observers while working ona very very large project, and I didn't quite understand how they were structured and I suppose this had something to do with the huge size of the project itself. Anyway, I then decided to delve a little more into that, I … |
| | Hi guys, I'm playing around ith optionals a little, but I'm not surewhether this is the correct behavious as I'm getting a null pointer exeption (I thought the point of Optionals was not to get a null pointer.) SO I'm setting an object to null and before calling toString on … |
| | I was just wondering if anybody here on daniweb has any experience of writing twitterbots, for things like, for instance, looking through tweets for keywords and then submitting a link to your own profile when you find an advert that interests you or something like that. I, perhaps naively, never …  |
| | Hi guys, I'm fairly new to angularjs 2 (I've only used 2) and I have a small application with a form. Currently I'm able to get the form data as an objects and print it to the console.log, onSubmit(form: any):void{ console.log(form); } producing this: Object {author: "Author test", title: "Title … |
| | Hi guys, I wonder if you can help me. As I’m now doing java development as a profession now, I’ve realized that I’m a little weak when it comes to fix, modify and understand code within large applications, and, needless to say, I need to find a way to get … |
| | Hi guys, as I'm looking into the MVC pattern, I thought I'd create a small application to understand a bit more. Let's look at the code: //model package model; public class StudentModel { private String name; private String surname; private int number; public String getName() { return name; } public … |
| | Hi guys, I have a rather interesting problem. Basically my application has a javascript object literal in this format: var myObject = '{text:"my text 1", anotherProperty1:"This is another property1", anotherProperty2:"This is another property2", anotherProperty3:"This is another property3"},' + '{text:"my text 2", anotherProperty1:"This is another property1", anotherProperty2:"This is another property2", anotherProperty3:"This … |
| | Hi guys, I'm looking into the possibility of writing some javascript (or using an API of course) to be able to search a collection of PDFs and return the results in a Json format for processing (mainly displaying them back to the user). I've played around a little bit with …  |
| | Hi guys, as I have never used any design pattern I thought I might try to learn something by developing a small application. What I'm thinking is something like a radio controlled car simulation - I mean a really really simplified version of it of course - something like creating … |
| | HI guys, I seem to be having an issue declaring a json string. The original string I have is this: var jsonString = '{ "details" : [' + '{"text":"Lorem ipsum dolor sit amet, consectetur 0", "firstName":"Jack0", "surname":"Dee0", "moreInfo":"This is extra information"},' + '{"text":"Lorem ipsum dolor sit amet, consectetur 1", "firstName":"Jack1", … |
| | hi guys, I came across something rather interesting today. Basically at the moment I'm trying to add multiple spans with a background image to a horizontal div so that the final product looks something like a large ruler ( I use an image with a little black tick to simulate … |
| | HI guys, I wonder if you can help me at all. I'm going to be involved in a "data visualization" project, meaning that I have to find a good way to visualize some data. What do you mean I hear you say? Well, we have some data and we have …  |
| | Hi guys, I will soon have a licence to run webstorm on one machine (at work) but I need to think of some other free IDE which supports typescript ideally natively on a different laptop running windows and linux (at home). I had a look around of course, but as … |
| | Hi, as I was told that my code doesn’t scale well at all, I thought perhaps I’d try to get a better understanding of interfaces/abstract classes and classes and the relationship between them. I don’t want at this stage work on a big separate project as I've already got plenty … |
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