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Java ArrayList how to add elements at the beginning
...n element to the front of the list.
https://docs.oracle.com/javase/7/docs/api/java/util/LinkedList.html#addFirst(E)
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Tool to read and display Java .class versions
... to read the class file signature and get these values without a 3rd party API. All you need to do is read the first 8 bytes.
ClassFile {
u4 magic;
u2 minor_version;
u2 major_version;
For class file version 51.0 (Java 7), the opening bytes are:
CA FE BA BE 00 00 00 33
...where 0xCA...
Extract digits from a string in Java
...e characters that are not 0-9 (see docs: download.oracle.com/javase/6/docs/api/java/lang/… )
– Sean Patrick Floyd
Oct 27 '10 at 7:58
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What is the main difference between PATCH and PUT request?
... row.
Example: You could use PATCH method to update order status.
PATCH /api/users/40450236/order/10234557
Request Body: {status: 'Delivered'}
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How can I submit a form using JavaScript?
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@Jonathan What is the name of button you had? Coz, as per api.jquery.com/submit child elements of a form should not use input names or ids that conflict with properties of a form.
– keya
Sep 13 '18 at 14:53
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Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...now())
'2014-05-17T01:18:47.944126+00:00'
Arrow has essentially the same api as datetime, but with timezones and some extra niceties that should be in the main library.
A format compatible with Javascript can be achieved by:
arrow.utcnow().isoformat().replace("+00:00", "Z")
'2018-11-30T02:46:40....
How can you use optional parameters in C#?
...rvices;
public void Foo(int a, int b, [Optional] int c)
{
...
}
In our API wrapper, we detect optional parameters (ParameterInfo p.IsOptional) and set a default value. The goal is to mark parameters as optional without resorting to kludges like having "optional" in the parameter name.
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Detect viewport orientation, if orientation is Portrait display alert message advising user of instr
... window.orientation deprecated developer.mozilla.org/en-US/docs/Web/API/Window/orientation
– kluverua
Feb 13 at 9:45
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Windows can't find the file on subprocess.call()
...ion:
"Prior to Python 3.5, these three functions comprised the high level API to subprocess. You can now use run() in many cases, but lots of existing code calls these functions."
SO: instead of subprocess.call use subprocess.run for Python 3.5 and above
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Get the current fragment object
...support library jar. It should not be considered as a part of the exported API.
– James Wald
Mar 25 '14 at 6:41
Heh, t...