All Questions

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answer

Concurrent Programming x Parallel x Distributed

What are they, what are the characteristics of each? Problems that each one proposes to solve? Main difference between them?     
asked on 20.07.2015 / 20:15
2
answers

How to count the amount of occurrence of a substring within a string?

I have the following return:    EXCEPTION, ClassException, EXCEPTION, Exception Message I'd like to get the number of times the String EXCEPTION appears using Regex . I used the following code: Pattern.compile("(EXCEPTION)",Pa...
asked on 16.01.2014 / 13:47
1
answer

What is RecyclerView?

I saw the class in the Andorid documentation , but I did not quite understand its functionality , where it should be used and for which purpose. The name referred to something that does not seem to be what it actually represents. Is there an...
asked on 02.08.2018 / 13:49
2
answers

What is the assert in Python?

@CiganoMorrisonMendez gave me a answer in a previously asked question about Python . And since I'm a beginner in% w / o%, I still do not know what the% w / w% that he indicated in the answer is. The excerpt from the code he indicated...
asked on 04.09.2015 / 15:08
2
answers

Redirect: Location vs Refresh

When you use Location and Refresh to redirect. header( "Location: www.dominio.com" , TRUE , 302 ) header( "Refresh:5; url=www.dominio.com" , TRUE , 302 ) Both options produce the same result: redirection . The difference is tha...
asked on 09.09.2014 / 04:13
1
answer

Inheritance in relational database

One of the great challenges in developing object-oriented software is to abstract the data from its object base in order to better manipulate it, nowadays the available ORM frameworks facilitate this abstraction a lot, the problem is when we begi...
asked on 06.10.2014 / 22:40
3
answers

Which CSS property prefixes do Edge support?

With Windows 10 Launch , Microsoft just retired from Internet Explorer by changing the default browser to Microsoft Edge . To support CSS properties that have not yet been W3C standard in , browsers implement unique prefixes to support...
asked on 10.08.2015 / 14:12
3
answers

What is a static function for?

What is a function with keyword static ? I know that declaring a local variable as static within a function will work as if it were a global variable, and a static function how does it work? And when should you use a sta...
asked on 01.12.2017 / 18:18
2
answers

How does std :: move work?

I would like to understand the operation of std::move . I noticed that with the C ++ 11 specification this new function arises, and now we have a new operator (& &). What is the semantics and use of this new function and this...
asked on 03.02.2015 / 16:04
4
answers

Comments in css with // instead of / * * /

Placing // at the beginning of a line creates an invalid property, ie CSS ignores this line. div { background-color: cyan; // background-color: red; } I know the CSS default is using /* */ , but what is the problem I ca...
asked on 08.01.2015 / 18:26