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How many bytes does one Unicode character take?

...ing, it defines codepoints and a codepoint is a number, associated with usually a character. I say usually because there are concepts like combining characters. You may be familiar with things like accents, or umlauts. Those can be used with another character, such as an a or a u to create a new log...
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“Add unimplemented methods” feature in the Android Studio

In the Eclipse IDE there is a great feature allows you to add (implement) all of the required methods of the particular class. I'm looking for this feature in the Android Studio IDE, but without success so far. Is there something similar? For me it is one of the key-features and can't live without. ...
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Convert UTC/GMT time to local time

...teTimeKind.Utc Now, once the system knows its in UTC time, you can just call ToLocalTime: DateTime dt = convertedDate.ToLocalTime(); This will give you the result you require. share | improve t...
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How can I open multiple files using “with open” in Python?

I want to change a couple of files at one time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement: ...
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Can one AngularJS controller call another?

...omeDataService) { // use the data service, bind to template... // or call methods on someDataService to send a request to server } function SecondController(someDataService) { // has a reference to the same instance of the service // so if the service updates state for example, this contr...
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What is the use case of noop [:] in bash?

... to do. while keep_waiting; do : # busy-wait done The : builtin dates all the way back to the Thompson shell, it was present in Unix v6. : was a label indicator for the Thompson shell's goto statement. The label could be any text, so : doubled up as a comment indicator (if there is no goto comm...
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The 'Access-Control-Allow-Origin' header contains multiple values

...rties.Settings.Default.Cors, "", "")) as well as app.UseCors(CorsOptions.AllowAll); on the server. This results in two header entries. Just use the latter one and it works. share | improve this a...
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Difference between local and global indexes in DynamoDB

...ndary index is considered "global" because queries on the index can span all of the data in a table, across all partitions. Local secondary index — an index that has the same hash key as the table, but a different range key. A local secondary index is "local" in the sense that every p...
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How can I echo HTML in PHP?

I want to conditionally output HTML to generate a page, so what's the easiest way to echo multiline snippets of HTML in PHP 4+? Would I need to use a template framework like Smarty? ...
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Error type 3 Error: Activity class {} does not exist

...the Build directory Restarted Android Studio Rebuild the Project Run Optionally (Go to the files menu on android, click on "Invalidate Caches / Restart..." uninstall the app on your phone and try again) And everything worked fine! I think the key is to restart your IDE. Hope this helps you or a...