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Most concise way to convert a Set to a List
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@Jack: That definitely won't be the case. From the Javadoc from java.util.List: "Lists (like Java arrays) are zero based."
– Adamski
Feb 19 '16 at 14:55
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How to manually set an authenticated user in Spring Security / SpringMVC
...ssword, HttpServletRequest request) {
try {
// Must be called from request filtered by Spring Security, otherwise SecurityContextHolder is not updated
UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
token.setDetail...
Check status of one port on remote host [closed]
...known ip:
nmap -A 192.168.0.5/32 -p 23
For example, look for open ports from 20 to 30 on host.example.com:
nc -z host.example.com 20-30
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Google Analytics - Failed to load resource: http://www.google-analytics.com/ga.js
...ly.
yagudaev suggests (read answers below) that in order to keep AdBlock from blocking Google Analytics, you need to edit the snippet provided and explicitly use https:// instead of the protocol-relative URL by default. This means changing
'//www.google-analytics.com/analytics.js'
into
'https...
What is Double Brace initialization in Java?
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Double brace initialisation creates an anonymous class derived from the specified class (the outer braces), and provides an initialiser block within that class (the inner braces). e.g.
new ArrayList<Integer>() {{
add(1);
add(2);
}};
Note that an effect of using this double...
byte + byte = int… why?
...ions to do arithmetic with 32 bits very quickly. Doing the conversion back from the result to a byte automatically could be done, but would result in performance penalties in the case where you don't actually want that behaviour.
I think this is mentioned in one of the annotated C# standards. Looki...
Local dependency in package.json
...pecify local Node module installation paths in your package.json directly. From the docs:
Local Paths
As of version 2.0.0 you can provide a path to a local directory that contains a package. Local paths can be saved using npm install -S or npm install --save, using any of these forms:
../foo/bar
~/...
What do the python file extensions, .pyc .pyd .pyo stand for?
...ult in malfunctioning programs. Currently only __doc__ strings are removed from the bytecode, resulting in more compact ‘.pyo’ files. Since some programs may rely on having these available, you should only use this option if you know what you're doing.
A program doesn't run any faster when it ...
Hex transparency in colors [duplicate]
...ved generically by a cross multiplication.
We have a percentage (ranging from 0 to 100 ) and another number (ranging from 0 to 255) then converted to hexadecimal.
100 <==> 255 (FF in hexadecimal)
0 <==> 0 (00 in hexadecimal)
For 1%
1 * 255 / 100 = 2,5
2,5 in hexa is 2 if you ro...
Convert an ISO date to the date format yyyy-mm-dd in JavaScript
How can I get a date having the format yyyy-mm-dd from an ISO 8601 date?
18 Answers
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