Hi All
I have a generic Collection and am trying to work out how I can sort the items contained within it. Ive tried a few things but I cant get any of them working.
I'm looking to build a Struts 1.2.x application for Websphere, using IBM's Application Server Toolkit. Are there any plugins available for this toolkit (it is a version of Eclipse) that are known to help with this type of development? I am new to Struts so I will also be learning about the technology as I go along, but I want to make it as painless as possible.
A web search has only brought up things such as "MyEclipse", which I can't use in the corporate environment.
I hear a lot of Emacs users have their init file under git version control and sync the git repository over Dropbox, when they run Emacs on multiple systems.
Why would you use git in this situation exactly?
Usually checking which system you're on and which things to load and set depending on that can happen in one and the same init file for all systems, right?
So, isn't it simply enough to put your init file in a Dropbox directory and load that one directly from Emacs then?
Some time ago I had a look into Ruby and one of the things which stood out most for me was the way of using symbols.
While you to use defines or strings like in C++ or Python as an alternative, in Ruby you just write :mySymbol and the interpreter takes over the enumeration for you.
I can't see any disadvantage this feature has, so why is it missing in say, PHP and Python?
Without relying on third party libraries or obscenely complex custom number generating things, which of those two languages makes the most 'random' random numbers?
not too important, just a program that simulates dice rolls (I'm still a little new at both languages)
I am studying COM so there're some basic questions puzzling me...
I know that IDL file is used to describe the method definitions (or the so called 'contract' between software modules), and the .H header files contains something like a method prototype, which looks similar to what the IDL is meant for. So, why are these two things coexist? Isn't one enough?
Many thanks.
Is there a way to accomplish these 2 simple things:
Hide the "Like" button when the user
opted to "Like" it.
On page load, check if the user "Like"s the page. If TRUE, hide the
"Like" button. If FALSE, show it.
Thanks in advanced.
Say I have a TODO list iphone app, that can be edited/viewed from both a web application and the iphone application.
When on the iphone, when a user views all his todo lists, or sub-items, I would think that each time the user views a particular list it shouldn't be hitting the web applications API every-time, but rather cache locally the values and only hit the web when things change.
What strategies are there for this type of scenerio?
Hi Guys (and gals),
In the past my employers bought me subscriptions to MSDN and Safari but now that I am working as a contractor and have to pay for these things myself, I was wondering if there are other services that offer subscriptions or access to technical books. I develop on Windows using C++ and .NET.
Introduction
I have some sort of values that I might want to access several times each page is loaded. I can take two different approaches for accessing them but I'm not sure which one is 'better'. Three already implemented examples are several options for the Language, URI and displaying text that I describe here:
Language
Right now it is configured in this way: lang() is a function that returns different values depending on the argument.
Example: lang("full") returns the current language, "English", while lang() returns the abbreviation of the current language, "en". There are many more options, like lang("select"), lang("selectact"), etc that return different things. The code is too long and irrelevant for the case so if anyone wants it just ask for it.
Url
The $Url array also returns different values depending on the request. The whole array is fully defined in the beginning of the page and used to get shorter but accurate links of the current page.
Example: $Url['full'] would return "http://mypage.org/path/to/file.php?page=1" and $Url['file'] would return "file.php". It's useful for action="" within the forms and many other things. There are more values for $Url['folder'], $Url['file'], etc. Same thing about the code, if wanted, just request it.
Text
[You can skip this section]
There's another array called $Text that is defined in the same way than $Url. The whole array is defined at the beginning, making a mysql call and defining all $Text[$i] for current page with a while loop. I'm not sure if this is more efficient than multiple calls for a single mysql cell.
Example: $Text['54'] returns "This is just a test array!" which this could perfectly be implemented with a function like text(54).
Question
With the 3 examples you can see that I use different methods to do almost the same function (no pun intended), but I'm not sure which one should become the standard one for my code. I could create a function called url() and other called text() to output what I want. I think that working with functions in those cases is better, but I'm not sure why. So I'd really appreciate your opinions and advice.
Should I mix arrays and functions in the way I described or should I just use funcions?
Please, base your answer in this:
The source needs to be readable and reusable by other developers
Resource consumption (processing, time and memory).
The shorter the code the better.
The more you explain the reasons the better.
Thank you
PS, now I know the differences between $Url and $Uri.
I've got to a point where i want to start using version control for my project.
Mainly for reverting to previous versions of files if things go belly up, doing diff comparisons. Nothing major.
I want something that integrates well with visual studio, and something thats relatively simple to setup. - prefereably with a link to a tutorial for setting up would be nice.
Im just using my pc for this so something like TFS is out of the question.
Hi,
When I'm developing my gwt project without a network connection, is there a way to detect this? For example, I have a widget that has an Image in it, and the widget does not display until the Image url request times out (takes a long time, like 2 minutes?).
Also, whenever I refresh the page in hosted mode, it doesn't finish loading for about a minute, when no network connection - seems like gwt is trying to contact some external website and blocking on that until it times out too - making things really slow - any way to stop that too?
Thanks
I'm planing to start learning JQuery (among other things), so I'm looking for a good Javascript editor that can preferably provide some of the following features:
Syntax coloring
Contextual help for standard JS functions, JQuery functions and possibly custom ones.
Some code completion.
(optional) JS debugging
Is there such and editor out here? or any that come close to this?
A library function parses a file and returns an object. If a parser encounters unknown data, missing values etc., it shouldn't throw an exception and stop parsing (because this is not fatal), but there should be a way to pass information about these things to a caller (so that warnings can be displayed in the UI, for example). How can these warning be returned? I'm thinking of passing a callback function/object into the library, are there any other possible solutions?
I've got things minimally working in Scite... and a quick browse tells me that there is an Eclipse plugin and several other standalone editors, in addition to other general purpose editors with Lua capability.
Out of that, what do people recommend? Particularly, what do people who program primarily in Lua like to use?
Edit: Thanks for all the answers!
Duplicate: Is there any form designer available for Google Android?
I would like to move a CheckBox, so it displays in a different location than the top-left corner under Absolute Layout inside main.xml, for 'Android'. I'm using Eclipse to edit my views. How would I do this?
On an iPhone they have a tool called Interface builder that allows you to move things in a WYIWYG fashion.
Does Eclipse have similar functionality?
Regards
ShotSimon
Right now I am going through MIT's introduction to Computer Science course via OpenCourseWare. As a part of this course I am learning the Python Language.
I've read a lot of things about the benefits of learning C. Before I dig any deeper into Python I wonder if I will be hindered or helped by learning Python first.
Do you think that I will develop any bad habits or anything like that from Python?
formbuild's start_with_layout generates this code
<form action="link" method="post"><table>
how do i add id to it? i wanna add some js things that adds elements
Are there any USB functions for Android devices (all user devices, not rooted)?
I'm curious because I might want to make an app that puts things through USB
hopefully the question doesn't sound stupid, but there are lots of examples out there of achieving certain things in javascript/dom using jQuery. Using jQuery is not always an option (or even a want) which can make understanding the examples of javascript solutions written in jQuery hard.
Is there an easy way to convert jQuery code to regular javascript? I guess without having to access or understand the jQuery source code...
edit (future readers): pretend there is a logical reason why jQuery isn't available!
Hello, I am not sure about some things in OOP.
If I have Class1, which has some private field, for example private Field field1, and make
getField1 () {
return field1;
}
then I have some class with constructor
public Class2 (Field field) {
someMethod(field);
}
And then I call constructor of Class2 in Class3 like:
Class2 cl = new Class2(instanceOfClass1.getField1());
And now the question: Am I working with field1 of instanceOfClass1 in someMethod(field)?
Soon I'll be launching my new site and i was planning on using gmail as the email server for things like registration and lost password.
I'll be using google apps (free version) so I can have [email protected].
Besides the 500/day limit are there any other potential problems with using gmail for this service?
I've worked with Xcode and iOS on a few personal projects and have always used non-object-oriented designs for everything... just because I've been doing mostly learning/experimenting with things.
Now I've been trying to implement some object oriented design into one game I've made previously. The idea is, I have a space ship that can shoot bullets. In the past I basically added the UIImageView to the storyboard and then connected it to the .h file and from there did things on it like move it around or whatever (using CGPointMake).
The idea now is to make a method (and a whole other class soon) that will create a UIImageView programmatically, allocate it, add it to the superview etc... I've got this working so far, easy stuff, but the next part is a bit harder. Where do I store this local variable "bullet"? I've been saving it to an NSMutableArray and doing the following:
(actually here are the methods that I have)
-(void)movement {
for (int i = 0; i < [array1 count]; i ++) {
UIImageView *a = [array1 objectAtIndex:i];
a.center = CGPointMake(a.center.x + 2, a.center.y);
if (a.center.x > 500) {
[array1 removeObjectAtIndex:i];
[a removeFromSuperview];
}
}
}
-(void)getBullet {
UIImageView *bullet = [[UIImageView alloc] initWithFrame:CGRectMake(ship.center.x + 20, ship.center.y - 2, 15, 3)];
bullet.image = [UIImage imageNamed:@"bullet2.png"];
bullet.hidden = NO;
[self.view addSubview:bullet];
[array1 addObject:bullet];
}
(by the way, array1 is declared in the .h file)
and theres a timer that controls the movement method
timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(movement) userInfo:nil repeats:YES];
first question is: what is the correct way of doing this? Storing a bullet for example until it is removed from the superview, should I store it another way?
and another question is, when I remove a UIImageView from the superview, does that remove it from memory so its not using up system resources?
Thank you for the help!
(will update if I Think of other questions
Is size_t only in C++ standard or C standard as well?
I cannot find a C header in the "/usr/include" tree that defines size_t.
If it is not in the C std, is GCC just doing some magic to make things work?
Thanks,
Chenz
I check my code into a GIT branch every few minutes or so, and the comments end up being things like "Everything broken starting again" and other absurdities.
Then every few minutes/hours/days I do a serious checkin with a real comment like, "Fixed bug #22.55, 3rd time." How can I separate these two concepts? I would like to be able to remove all my frequent-checkins and just leave the serious ones.