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Why covariance and contravariance do not support value type
...not support value type, just only reference type. The below simple code is compiled successfully:
4 Answers
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Programmatically generate video or animated GIF in Python?
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I'd recommend not using images2gif from visvis because it has problems with PIL/Pillow and is not actively maintained (I should know, because I am the author).
Instead, please use imageio, which was developed to solve this problem...
What is the smallest possible valid PDF?
...rtxref
149
%EOF
which is 291 bytes of PDF joy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec.
However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out:
%PDF-1.0
1 0 obj...
How can I make a multipart/form-data POST request using Java?
In the days of version 3.x of Apache Commons HttpClient, making a multipart/form-data POST request was possible ( an example from 2004 ). Unfortunately this is no longer possible in version 4.0 of HttpClient .
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UIScrollView Scrollable Content Size Ambiguity
...date:
Some special case is covered by this video posted by @Sergio in the comments below.
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Why does printf not flush after the call unless a newline is in the format string?
...// Will now print everything in the stdout buffer
Edit: From Andy Ross's comment below, you can also disable buffering on stdout by using setbuf:
setbuf(stdout, NULL);
or its secure version setvbuf as explained here
setvbuf(stdout, NULL, _IONBF, 0);
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python tuple to dict
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Very fast, comprehensive and simple. Perfect answer.
– gies0r
May 23 '18 at 10:47
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Name of this month (Date.today.month as name)
I'm using Date.today.month to display the month number. Is there a command to get the month name, or do I need to make a case to get it?
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Difference between final static and static final
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Where to use EJB 3.1 and CDI?
...Ultimately, EJB and CDI share the same fundamental design of being proxied components. When you get a reference to an EJB or CDI bean, it isn't the real bean. Rather the object you are given is a fake (a proxy). When you invoke a method on this fake object, the call goes to the container who will...