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What is Java Servlet?

... (e.g. parsing an HTTP request, connection handling etc). One of the best-known open source servlet containers is Tomcat. share | improve this answer | follow ...
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How do I find Waldo with Mathematica?

...readers, and strokeless handwriting recognition work today. Basically you know the answer is there, you know more or less what it should look like, and everything else may have common elements, but is definitely "not it", so you don't bother with the "not it"s, you just look of the likelihood of "it...
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How to securely save username/password (local)?

...e entered user name and password, use the Rfc2898DerivedBytes class (also known as Password Based Key Derivation Function 2 or PBKDF2). This is more secure than using encryption like Triple DES or AES because there is no practical way to go from the result of RFC2898DerivedBytes back to the passwor...
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What is the most compatible way to install python modules on a Mac?

...d and there are some details not covered in other answers: Most people I know use HomeBrew or MacPorts, I prefer MacPorts because of its clean cut of what is a default Mac OS X environment and my development setup. Just move out your /opt folder and test your packages with a normal user Python envi...
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How to find and return a duplicate value in array

... a = ["A", "B", "C", "B", "A"] a.detect{ |e| a.count(e) > 1 } I know this isn't very elegant answer, but I love it. It's beautiful one liner code. And works perfectly fine unless you need to process huge data set. Looking for faster solution? Here you go! def find_one_using_hash_map(arr...
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Please explain the exec() function and its family

...ocess (the parent) as its parent PID (PPID). Because the two processes are now running exactly the same code, they need to be able to tell which is which - the return code of fork() provides this information - the child gets 0, the parent gets the PID of the child (if the fork() fails, no child is c...
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is vs typeof

... @[ilitirit]: they return the same result right now, but if you add a subclass later they won't – Steven A. Lowe Oct 8 '08 at 21:13 13 ...
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Libraries not found when using CocoaPods with iOS logic tests

... CocoaPods 1.0 has changed the syntax for this. It now looks like this: def shared_pods pod 'SSKeychain', '~> 0.1.4' ... end target 'Sail' do shared_pods end target 'Sail-iOS' do shared_pods end Pre CocoaPods 1.0 answer What you want to use is link_...
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How can I change IIS Express port for a site

...icking the Create Virtual Directory button. Doing that made the different; now it works. But why is that necessary? – Rod Jun 1 '18 at 17:20 ...
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?

...irst the printf and then puts and the retq return. With __builtin_expect Now replace if (i) with: if (__builtin_expect(i, 0)) and we get: 0000000000000000 <main>: 0: 48 83 ec 08 sub $0x8,%rsp 4: 31 ff xor %edi,%edi 6: e8 00 0...