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Converting a Date object to a calendar object [duplicate]
So I get a date attribute from an incoming object in the form:
3 Answers
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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
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Yes, the code is standard conforming. The + triggers a conversion to a plain old function pointer for the lambda.
What happens is this:
The compiler sees the first lambda ([]{}) and generates a closure object according to §5.1.2. As the lambda is a non-c...
How can I save an image with PIL?
...g using the Python image library (PIL) using a post I found earlier to perform fourier transforms of images and I can't get the save function to work. The whole code works fine but it just wont save the resulting image:
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
... json.dump("ברי צקלה", json_file, ensure_ascii=False)
Caveats for Python 2
For Python 2, there are some more caveats to take into account. If you are writing this to a file, you can use io.open() instead of open() to produce a file object that encodes Unicode values for you as you write...
how do I check in bash whether a file was created more than x time ago?
I want to check in linux bash whether a file was created more than x time ago.
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How to stop EditText from gaining focus at Activity startup in Android
...de="true" and android:focusable="true" to parent layout (e.g. LinearLayout or ConstraintLayout) like the following example will fix the problem.
<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
android:focusable="true"
android:focusableInTouch...
Non-recursive depth first search algorithm
I am looking for a non-recursive depth first search algorithm for a non-binary tree. Any help is very much appreciated.
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PatternSyntaxException: Illegal Repetition when using regex in Java
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The { and } are special in Java's regex dialect (and most other dialects for that matter): they are the opening and closing tokens for the repetition quantifier {n,m} where n and m are integers. Hence the error message: "Illegal repetition".
You should escape them: "\\{\"user_id\" : [0-9]*\\}".
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How do you redirect to a page using the POST verb?
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HTTP doesn't support redirection to a page using POST. When you redirect somewhere, the HTTP "Location" header tells the browser where to go, and the browser makes a GET request for that page. You'll probably have to just write the code for...
What does “&” at the end of a linux command mean?
I am a system administrator and I have been asked to run a linux script to clean the system.
4 Answers
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