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How can I make a JUnit Test wait?
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This answer should be removed, and considered harmful. A much better answer below is stackoverflow.com/a/35163873/1229735
– yiati
Apr 6 at 16:31
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How can I create a directly-executable cross-platform GUI app using Python?
Python works on multiple platforms and can be used for desktop and web applications, thus I conclude that there is some way to compile it into an executable for Mac, Windows and Linux.
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Is string in array?
...e new readers to know that there is a new method to do this using generics and extension methods.
You can read my blog post to see more information about how to do this, but the main idea is this:
By adding this extension method to your code:
public static bool IsIn<T>(this T source, params...
How can I find out a file's MIME type (Content-Type)?
...ave yum,
yum install xdg-utils.noarch
An example comparison of xdg-mime and file on a Subrip(subtitles) file
$ xdg-mime query filetype subtitles.srt
application/x-subrip
$ file --mime-type subtitles.srt
subtitles.srt: text/plain
in the above file only show it as plain text.
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Java: getMinutes and getHours
How do you get Hours and Minutes since Date.getHours and Date.getMinutes got deprecated? The examples that I found on Google search used the deprecated methods.
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How to call a Parent Class's method from Child Class in Python?
... able to invoke methods of the parent class from a derived class. In Perl and Java, there is a keyword for this ( super ). In Perl, I might do this:
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DateTime “null” value
...bleDate;
Or the longer form:
Nullable<DateTime> MyNullableDate;
And, finally, there's a built in way to reference the default of any type. This returns null for reference types, but for our DateTime example it will return the same as DateTime.MinValue:
default(DateTime)
or, in more re...
Polymorphism with gson
... problem deserializing a json string with Gson.
I receive an array of commands. The command can be start, stop , some other type of command. Naturally I have polymorphism, and start/stop command inherit from command.
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How to prepend a string to a column value in MySQL?
...hat:
UPDATE tbl SET col=CONCAT('test',col);
If you want to get cleverer and only update columns which don't already have test prepended, try
UPDATE tbl SET col=CONCAT('test',col)
WHERE col NOT LIKE 'test%';
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cv2.imshow command doesn't work properly in opencv-python
...e code created a window of the correct name, but its content is just blank and doesn't show the image:
15 Answers
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