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How do I sort a vector of pairs based on the second element of the pair?
...r... He said: "is there and easy way to sort the list in increasing order based on the second element of the pair?"
– Evan Teran
Dec 5 '14 at 18:42
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Unit testing code with a file system dependency
...ing a bit more interesting going on with a file and you wanted to save the Base64 encoded contents of a byte[] to a file. You can use streams for this to test that your code does the right thing without having to check how it does it. One example might be something like this (in Java):
interface St...
Co-variant array conversion from x to y may cause run-time exception
... reference an array of objects (in your case, LinkLabels) as an array of a base type (in this case, as an array of Controls). It is also compile time legal to assign another object that is a Control to the array. The problem is that the array is not actually an array of Controls. At runtime, it is s...
Static and Sealed class differences
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Sort've interesting to think of other types, based of this. Like some root class that can be inherited and instantiated, but can't inherit. Not sure why that'd be useful, but still
– AustinWBryan
May 20 '18 at 3:41
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What is the need of JSF, when UI can be achieved with JavaScript libraries such as jQuery and Angula
...o plain JS: do more with less code. To take PrimeFaces (jQuery + jQuery UI based) as an example, browse through its showcase to see complete code examples. BootsFaces (jQuery + Bootstrap UI based) has also a showcase with complete code examples. If you study those examples closely, then you'll see t...
What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
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I used a graph database in a previous job. We weren't using neo4j, it was an in-house thing built on top of Berkeley DB, but it was similar. It was used in production (it still is).
The reason we used a graph database was that the data being s...
Calling virtual functions inside constructors
...om derived classes hasn’t yet happened. Objects are constructed from the base up, “base before derived”.
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Destruction is done “derived class before base class”, so virtual functions behave as in constructors: Only the local definitions are used – and no calls are made to overriding ...
Rename multiple files based on pattern in Unix
There are multiple files in a directory that begin with prefix fgh , for example:
22 Answers
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How to use OpenSSL to encrypt/decrypt files?
... enc -ciphername [-in filename] [-out filename] [-pass arg]
[-e] [-d] [-a/-base64] [-A] [-k password] [-kfile filename]
[-K key] [-iv IV] [-S salt] [-salt] [-nosalt] [-z] [-md] [-p] [-P]
[-bufsize number] [-nopad] [-debug] [-none] [-engine id]
Explanation of most useful parameters with regards t...
How to sort a file, based on its numerical values for a field?
Example file.txt :
8 Answers
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