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How do I use the new computeIfAbsent function?
...ic static void main(String[] s) {
Map<String, Boolean> whoLetDogsOut = new ConcurrentHashMap<>();
whoLetDogsOut.computeIfAbsent("snoop", k -> f(k));
whoLetDogsOut.computeIfAbsent("snoop", k -> f(k));
}
static boolean f(String s) {
System.out....
How to concatenate two strings to build a complete path
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@TuureLaurinolli I don't understand where you're coming from. The above concatenation would still result in a valid path. The path might not exist, but it would still be valid. eg. "" + "/" + "Documents" gives "/Documents".
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Add a dependency in Maven
How do I take a jar file that I have and add it to the dependency system in maven 2? I will be the maintainer of this dependency and my code needs this jar in the class path so that it will compile.
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How to get the next auto-increment id in mysql
... just a note from '17 - mysql* functions are deprecated - above can be done with mysqli_insert_id
– treyBake
Jun 28 '17 at 8:35
1
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Convert String to Type in C# [duplicate]
...t to convert this string to a real type (the one in the string), how can I do this?
4 Answers
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How to turn on (literally) ALL of GCC's warnings?
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The manual for GCC 4.4.0 is only comprehensive for that version, but it does list all the possible warnings for 4.4.0. They're not all on the page you link to though, for instance some language-specific options are on the pages for C++ options or Obj-C options. To find them all you're better off ...
Iterate over each line in a string in PHP
...e two and put whichever one they entered into a string variable, but where do I go from there?
7 Answers
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Push Notifications in Android Platform
... that receives pushed alerts from a server. I found a couple of methods to do this.
20 Answers
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How to concatenate two MP4 files using FFmpeg?
...enation methods:
1. concat video filter
Use this method if your inputs do not have the same parameters (width, height, etc), or are not the same formats/codecs, or if you want to perform any filtering. (You could re-encode just the inputs that don't match so they share the same codec and other p...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...er to something ridiculously long, say 20 years...yet when it changes, you don't have to worry about that cache header, the browser sees a different querystring and treats it as a different, new file.
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