All Questions

4
answers

How do I set a "horizontal menu" at the top of the window when scrolling the page?

I have a layout with a horizontal navigation bar at the top of the site, it has margin-top:100px , when scrolling the page the menu should be set at the top of the window but with margin-top:0 . What is the best way to accomplish...
asked on 04.02.2014 / 16:51
2
answers

What is a JITter?

In the context of software development what is a JITter? More and more people are talking about it and several languages are using the much-talked about JIT compilation. How does it differ from a compiler?     
asked on 09.08.2016 / 14:32
3
answers

What are the standard sizes of android images?

I'm creating my first application on the Android platform and as far as I know one of the downside of this platform is that the devices on the market have different sizes of screens. I created a project in Eclipse and found that it creates 4...
asked on 16.12.2013 / 19:28
2
answers

How to leave a responsive image

I'm working on a site with a responsive feature and I have a promotions page and I would like the images to accompany the size change of the browser, the maximum size of the image is 1080px, following some companions' tips example shown separate...
asked on 09.02.2015 / 12:59
3
answers

Algorithm for faster route calculation between two points in parallel Cartesian layers (3D)

I'm working on a solution that involves determining the least effort route between two points in a building. (Imagine students on their first day of university, who need to know where they are and how to get to a given classroom in a building, o...
asked on 12.09.2014 / 22:41
1
answer

What is Null Byte Injection? How to avoid it?

What would this Null Byte Injection be? How to avoid it?
asked on 14.08.2015 / 14:23
4
answers

Strategies for analyzing very large databases in R (that do not fit in RAM)

Suppose I have a huge database that does not fit into RAM. What strategies to analyze this database in R, since I can not fully load it into memory? PS: The question is not just about how to make R talk to a relational / non-relational databa...
asked on 28.08.2014 / 06:44
3
answers

Should we validate function parameters?

In languages like Java, the method parameters are "validated" in the compilation (at least the type): public void facaAlgo(String str) { // ... } // em algum outro lugar: int i = 2; this.facaAlgo(i); // erro de compilação! In dynamic typ...
asked on 02.12.2014 / 12:46
1
answer

What is the difference between JavaBean and POJO?

I'm new to java and I have this doubt. I looked in various places on the internet and asked several JAVA programmers friends but none could clearly explain the difference between the two. What's the difference between JavaBean and POJO?     
asked on 26.06.2014 / 22:16
2
answers

Why is it important to inform users of the cookie policy?

I've been browsing several sites that in their headers show messages like:    This site uses cookies to improve your browsing. By browsing the site you will consent to its use. It's okay that cookies are stored on the user's machine, but...
asked on 21.07.2017 / 16:58