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Thread Rules
1. This is not a "do my homework for me" thread. If you have specific questions, ask, but don't post an assignment or homework problem and expect an exact solution.
2. No recruiting for your cockamamie projects (you won't replace facebook with 3 dudes you found on the internet and $20)
3. If you can't articulate why a language is bad, don't start slinging shit about it. Just remember that nothing is worse than making CSS IE6 compatible.
4. Use [code] tags to format code blocks. |
On July 26 2013 00:43 supereddie wrote:
For those PHP people that just posted: please use parameterized queries. It pains me to see those select statements...
Yeah, I get very tired of mentioning this every time. I don't even use PHP and I know that the mysql_ shit is deprecated and horrible to use, yet every single person in here basically uses it. If you're reading a book or a tutorial that recommends you use it, or recommends you do anything other than parameterized queries, throw it out and find a new resource.
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Is it a good idea to use a Java GUI builder? I've done a simple google check, and it seems Eclipse and some other CASE tools offer this, but how good is the generated code from them? I've only dealt once with Java GUI, and I wrote everything by hand which doesn't bring good memories, so I'm curious if it's better to use a builder this time. 
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Is there a codecademy-style website for C? I just want it to learn the syntax, as I find doing codecademy stuff much more fun than just reading the syntax.
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On July 26 2013 22:48 darkness wrote:Is it a good idea to use a Java GUI builder? I've done a simple google check, and it seems Eclipse and some other CASE tools offer this, but how good is the generated code from them? I've only dealt once with Java GUI, and I wrote everything by hand which doesn't bring good memories, so I'm curious if it's better to use a builder this time.
Depends on the project.
If you are a student and are doing things with the purpose of learning + the GUI is not complex, use Notepad++ and javac.
If you are working on a professional project or a project with a relatively complex GUI, then use a GUI builder. Netbeans is alright, I never used any other though, so can't comment which GUI builder is better.
Also, may come handy if you end up hating the default Layout Managers: MiG Layout.
edit: awful grammar mistake
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Speaking of GUI builders, does anyone else love Visual Studio 2010's GUI builder?
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Hey, I'm still working on learning some basic HTML and CSS. I've gotten proficient enough to whip up some site frames from scratch but I have a few issues I'd like to ask about.
Here is what a basic frame looks like:
![[image loading]](http://i.imgur.com/jhPLHM3.png)
Question 1
I want the light blue body to always extend to the bottom of the page, but then also extend more as needed if the text goes farther. How is this done?
Question 2
I want the navbar buttons to all be an equal set width instead of just the length of the button name. I've looked this up and tried setting the list item width and it doesn't have any effect, so I'm confused. Right now I'm equalizing their widths by tacking on invisible characters to the end of the names...lol
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On July 28 2013 13:07 sob3k wrote:
Question 1
I want the light blue body to always extend to the bottom of the page, but then also extend more as needed if the text goes farther. How is this done?
If I recall correctly...
html, body {
height: 100%;
}
And then you want to have a <div></div> around your light blue body content with a height: 100%; as well.
On July 28 2013 13:07 sob3k wrote:
Question 2
I want the navbar buttons to all be an equal set width instead of just the length of the button name. I've looked this up and tried setting the list item width and it doesn't have any effect, so I'm confused. Right now I'm equalizing their widths by tacking on invisible characters to the end of the names...lol
Your list elements should have a display: block; style applied to them, then you set the widths all to the same size.
What's your knowledge of HTML/CSS? This is quite a bother if you're not using a lot of CSS styles, divs, and good boilerplate. Google 'CSS boilerplates' to take a look.
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Thanks a ton. I'm obviously still learning but I'm confident in my ability to build basic sites from the ground up now that aren't a total mess. I'm actually more interested in learning everything from the ground up, so while I have and will continue to check out boilerplates and forms for ideas, I like to do it myself to make sure I understand whats going on. From my current learning experience everything seems quite doable so far, although many teaching resources are far from intuitive.
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Make the buttons a class, then name them that class. So for the CSS:
.button{
width:100px; (or whatever)
height; 100px;
}
Then name those buttons that class in the html.
Also, while learning (and setting up the layout) it is fine to do in-line css, it is standard and good practice to have all those css rules put onto an external stylesheet (or multiple stylesheets) and referenced.
Edit: Also Comic Sans
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On July 28 2013 13:46 sob3k wrote:
Thanks a ton. I'm obviously still learning but I'm confident in my ability to build basic sites from the ground up now that aren't a total mess. I'm actually more interested in learning everything from the ground up, so while I have and will continue to check out boilerplates and forms for ideas, I like to do it myself to make sure I understand whats going on. From my current learning experience everything seems quite doable so far, although many teaching resources are far from intuitive.
Yeah, the main problem is really like, we're not sure where you stand in terms of how your code is laid out, so it's difficult to describe the concepts to you if we're not sure exactly how to explain a solution. However, good luck with learning HTML from scratch.
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yes this is all external
I still can't get the buttons to work though, they wont change in width no matter what I do. Currently they are styled links <a> inside <li> tags. The" Navitem" class has some fancy shmancy shit so they depress on mouseover and look buttony.
![[image loading]](http://i.imgur.com/D5w4UDF.png)
I've tried setting the widths from <a>, <li>, or even the <ul>, and I can't make it change at all.
also that aint Comic Sans bro. Patrick Hand SC (obviously it wouldn't be on everything in a real finished product)
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I wouldn't make the buttons with a list, but that is me. I'd just make each one a separate div, nested in the navbar div. But if you're set on it, you should be able to control the size. I would make the <li> the class, not the anchors. Did you set the li to block level?
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On July 28 2013 14:19 HardlyNever wrote:
I wouldn't make the buttons with a list, but that is me. I'd just make each one a separate div, nested in the navbar div. But if you're set on it, you should be able to control the size. I would make the <li> the class, not the anchors. Did you set the li to block level?
alright, if I set use the li as the button and block them it equalizes the width. Of course it broke all my hover styling and shit but whatever, in the future I'll do that. This was just a practice page.
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On July 28 2013 14:32 sob3k wrote:Show nested quote +On July 28 2013 14:19 HardlyNever wrote:
I wouldn't make the buttons with a list, but that is me. I'd just make each one a separate div, nested in the navbar div. But if you're set on it, you should be able to control the size. I would make the <li> the class, not the anchors. Did you set the li to block level? alright, if I set use the li as the button and block them it equalizes the width. Of course it broke all my hover styling and shit but whatever, in the future I'll do that. This was just a practice page.
Yeah that's basically how changes in CSS work. Change one thing break everything. :'D
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Hey guys, was wondering if my code to solve fibonacci sequences with useMap set to true would qualify as dynamic programming.
Code is at https://gist.github.com/anonymous/d23efa6ad0c662c9d261
It was taking more then 10 sec for fib(100) to return so I was trying to speed it up a bit. If anyone has any other tips, I'd also appreciate it.
Also, is there any solution to how fast I get a long overflow?
edit:
Some other questions I had are
-would the runtime of calling fib with useMap set to false be O(n!)
-would the runtime with useMap set to true be O(n)
-storing the results in a map takes up more memory then not storing it. is there ever a case where the memory costs of memoring the results are offset by saved stack space of less method calls? Sorry if this is a super dumb question! I'd appreciate any tips about how to think about it.
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Yes, that's basic memoization, so it qualifies.
I assume you're asking about a stack overflow, not a long overflow, and if so, the solution is to not use recursion. Java has no tail-call optimization so there's not really any other way to avoid stack overflows with any sort of long recursion. With your algorithm as written, you could also avoid it by finding smaller fibonacci values first before attempting to find a large one, but its better to avoid the recursion.
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On July 28 2013 16:29 tec27 wrote:
Yes, that's basic memoization, so it qualifies.
I assume you're asking about a stack overflow, not a long overflow, and if so, the solution is to not use recursion. Java has no tail-call optimization so there's not really any other way to avoid stack overflows with any sort of long recursion. With your algorithm as written, you could also avoid it by finding smaller fibonacci values first before attempting to find a large one, but its better to avoid the recursion.
I had actually meant long overflow as in the result overflowing at something like fib(100). Because I looked up the first 1000 and they have huge results, but my attempt to calculate anything too large quickly overflowed.
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On July 28 2013 16:21 teamamerica wrote:Hey guys, was wondering if my code to solve fibonacci sequences with useMap set to true would qualify as dynamic programming. Code is at https://gist.github.com/anonymous/d23efa6ad0c662c9d261It was taking more then 10 sec for fib(100) to return so I was trying to speed it up a bit. If anyone has any other tips, I'd also appreciate it.
I don't really know Java but I think your code is fine. Dynamic programming involves storing previous results in memory so you don't have to calculate them everytime. This is what you're doing with your dictionary lookup.
On July 28 2013 16:21 teamamerica wrote:
Also, is there any solution to how fast I get a long overflow?
Big number libraries, possibly long long(platform dependent), or even using an unsigned integer will increase your range.
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On July 28 2013 16:39 teamamerica wrote:Show nested quote +On July 28 2013 16:29 tec27 wrote:
Yes, that's basic memoization, so it qualifies.
I assume you're asking about a stack overflow, not a long overflow, and if so, the solution is to not use recursion. Java has no tail-call optimization so there's not really any other way to avoid stack overflows with any sort of long recursion. With your algorithm as written, you could also avoid it by finding smaller fibonacci values first before attempting to find a large one, but its better to avoid the recursion. I had actually meant long overflow as in the result overflowing at something like fib(100). Because I looked up the first 1000 and they have huge results, but my attempt to calculate anything too large quickly overflowed.
Ah, then as Pawsom said, use something like BigInteger
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On July 28 2013 13:07 sob3k wrote:Hey, I'm still working on learning some basic HTML and CSS. I've gotten proficient enough to whip up some site frames from scratch but I have a few issues I'd like to ask about. Here is what a basic frame looks like: Question 1I want the light blue body to always extend to the bottom of the page, but then also extend more as needed if the text goes farther. How is this done? Question 2I want the navbar buttons to all be an equal set width instead of just the length of the button name. I've looked this up and tried setting the list item width and it doesn't have any effect, so I'm confused. Right now I'm equalizing their widths by tacking on invisible characters to the end of the names...lol
If the first Question is still an Issue, this is often done like this: http://alistapart.com/article/fauxcolumns
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EPT
