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How can I safely encode a string in Java to use as a filename?
...Use URL encoding (java.net.URLEncoder) to replace special characters with %xx. Note that you take care of the special cases where the string equals ., equals .. or is empty!¹ Many programs use URL encoding to create file names, so this is a standard technique which everybody understands.
Irreversi...
Android: Background Image Size (in Pixel) which Support All Devices
...to read
http://developer.android.com/guide/practices/screens_support.html
xxxhdpi: 1280x1920 px
xxhdpi: 960x1600 px
xhdpi: 640x960 px
hdpi: 480x800 px
mdpi: 320x480 px
ldpi: 240x320 px
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imp...
std::string to float or double
... prepared to deal with it when you pass invalid value, try passing string("xxx")
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Should import statements always be at the top of a module?
...ondition]:
import foo as plugin_api
else:
import bar as plugin_api
xx = plugin_api.Plugin()
[...]
There are probably other situations where you might place imports in other parts in the code.
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Convert object string to JSON
...lidJSON = "{ hello: 'world',foo:1, bar : '2', foo1: 1, _bar : 2, $2: 3, 'xxx': 5, \"fuz\": 4, places: ['Africa', 'America', 'Asia', 'Australia'] }"
JSON.parse(invalidJSON)
//Result: Uncaught SyntaxError: Unexpected token h VM1058:2
JSON.parse(JSONize(invalidJSON))
//Result: Object {hello: "world...
Passing parameters to a Bash function
...
Miss out the parens and commas:
myBackupFunction ".." "..." "xx"
and the function should look like this:
function myBackupFunction() {
# here $1 is the first parameter, $2 the second etc.
}
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Are foreign keys really necessary in a database design?
...m, but may be it's there... The most of databases use a convention like id_xxx that is exactly the same that ixXXX
– FerranB
Feb 5 '09 at 21:54
1
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When is the @JsonProperty property used and what is it used for?
...sSet". This is because as per Java Beans specification, methods of form "isXxx" and "setXxx" are taken to mean that there is logical property "xxx" to manage.
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jQuery select all except first
...ld child-0'>visible#1</div>
<div class='child child-1'>xx</div>
<div class='child child-2'>yy</div>
</div>
<div class='some-group'>
<div class='child child-0'>visible#2</div>
<div class='child child-1'>aa</div&...
How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
...nf
You can determine which openssl.cnf is being used by adding a spurious XXX to the file and see if openssl chokes.
First, modify the req parameters. Add an alternate_names section to openssl.cnf with the names you want to use. There are no existing alternate_names sections, so it does not matt...