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Why don't Java Generics support primitive types?
Why do generics in Java work with classes but not with primitive types?
6 Answers
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postgresql - sql - count of `true` values
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edited May 14 '16 at 7:17
answered Mar 22 '11 at 19:29
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Outline radius?
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Old question now, but this might be relevant for somebody with a similar issue. I had an input field with rounded border and wanted to change colour of focus outline. I couldn't tame the horrid square outline to the input control.
So instead, I used box-shadow. I actually preferred ...
What is the minimum valid JSON?
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At the time of writing, JSON was solely described in RFC4627. It describes (at the start of "2") a JSON text as being a serialized object or array.
This means that only {} and [] are valid, complete JSON strings in parsers and stringifiers wh...
Can I install/update WordPress plugins without providing FTP access?
...ction information while trying to install plugins or a WordPress update if it cannot write to /wp-content directly. Otherwise, if your web server has write access to the necessary files, it will take care of the updates and installation automatically. This method does not require you to have FTP/SFT...
How do you Force Garbage Collection from the Shell?
So I am looking at a heap with jmap on a remote box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends?
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Getting a random value from a JavaScript array
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It is a simple one-liner
const randomElement = array[Math.floor(Math.random() * array.length)];
Example
const months = ["January", "February", "March", "April", "May", "June", "July"];
const random = Math.floor(Math.ran...
kernel stack and user space stack
...Why kernel stack is used? If a local variable is declared in an ISR, where it will be stored? Does each process has its own kernel stack? Then how the process coordinates between both these stacks?
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Is PHP's count() function O(1) or O(n) for arrays?
... IS_CONSISTENT(ht);
return ht->nNumOfElements;
}
So you can see, it's O(1) for $mode = COUNT_NORMAL.
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How to display line numbers in 'less' (GNU)
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line in the display.
You can also toggle line numbers without quitting less by typing -N.
It is possible to toggle any of less's command line options in this way.
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