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What are enums and why are they useful?

...nt countFoobangs(int type) versus /** Types of foobangs. */ public enum FB_TYPE { GREEN, WRINKLED, SWEET, /** special type for all types combined */ ALL; } /** Counts number of foobangs. * @param type Type of foobangs to count * @return number of foobangs of type */ public int countFooban...
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How to get div height to auto-adjust to background size?

... url('https://upload.wikimedia.org/wikipedia/en/thumb/6/67/Wiki-llama.jpg/1600px-Wiki-llama.jpg') top center no-repeat; margin: 0 auto; } .wrapper:after { padding-top: 75%; /* this llama image is 800x600 so set the padding top % to match 600/800 = .75 */ display: block; content: '';...
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Mac OS X Git安装教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

.... Your public key has been saved in id_rsa.pub. The key fingerprint is: fb:c4:b0:e0:47:fd:be:e0:fb:ea:73:ef:a8:29:d5:22 jonezhang86@gmail.com The key's randomart image is: +--[ RSA 2048]----+ | | | | | | | . | | . S .. ...
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How can I programmatically get the MAC address of an iphone

...Base[0] = CTL_NET; // Request network subsystem mgmtInfoBase[1] = AF_ROUTE; // Routing table info mgmtInfoBase[2] = 0; mgmtInfoBase[3] = AF_LINK; // Request link layer information mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces // W...
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Why doesn't String switch statement support a null case?

... As damryfbfnetsi points out in the comments, JLS §14.11 has the following note: The prohibition against using null as a switch label prevents one from writing code that can never be executed. If the switch expression is of a refere...
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xcopy file, rename, suppress “Does xxx specify a file name…” message

... following command: xcopy /"C:\Data\Images\2013\08\12\85e4a707-2672-481b-92fb-67ecff20c96b.jpg" "C:\Target Data\\Images\2013\08\12\85e4a707-2672-481b-92fb-67ecff20c96b.jpg\" . Yes, put a backslash at the end of the file name! – adudley Aug 20 '13 at 8:02 ...
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Google fonts URL break HTML5 Validation on w3.org

...type="text/css" href="http://fonts.googleapis.com/css?family=Open+Sans:400,600,300,800,700,400italic%7CPT+Serif:400,400italic%7CBree+Serif"> share | improve this answer | ...
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Example of UUID generation using Boost in C++

... std::cout << uuid << std::endl; } Example output: 7feb24af-fc38-44de-bc38-04defc3804de share | improve this answer | follow | ...
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How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

...-with-gxx-include-dir=/usr/include/c++/4.2.1 Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc? – Thomas Dec 14 '14 at 16:11 ...
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How to properly add include directories with CMake

... system generation' time. See link : gist.github.com/mbinna/c61dbb39bca0e4fb7d1f73b0d66a4fd1 – ggulgulia Mar 21 at 10:34 ...