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Understand the “Decorator Pattern” with a real world example
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Decorator pattern achieves a single objective of dynamically adding
responsibilities to any object.
Consider a case of a pizza shop. In the pizza shop they will sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the piz...
How to get the IP address of the docker host from inside a docker container
...r, that's what bridge IP can give you (of course in the stndard "home" installation). Why anybody would need "real" host IP if it can be even outside of docker bridge and can be unaccessible? This is the solution for all people who just installed docker and want to play with it in a short time.
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How to convert a byte array to a hex string in Java?
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From the discussion here, and especially this answer, this is the function I currently use:
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2...
http to https apache redirection
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I have actually followed this example and it worked for me :)
NameVirtualHost *:80
<VirtualHost *:80>
ServerName mysite.example.com
Redirect permanent / https://mysite.example.com/
</VirtualHost>
<VirtualHost _de...
New lines inside paragraph in README.md
... to ensure that each line ends with two spaces. So, change
a
b
c
into
a__
b__
c
(where _ is a blank space).
Or, you can add explicit <br /> tags.
a <br />
b <br />
c
share
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Java Equivalent of C# async/await?
I am a normal C# developer but occasionally I develop application in Java. I'm wondering if there is any Java equivalent of C# async/await?
In simple words what is the java equivalent of:
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Failed to load JavaHL Library
...tput from the last command could look like this, for example:
/usr/lib/x86_64-linux-gnu/jni/libsvnjavahl-1.so
This gives you the path, so you can add the following to your eclipse.ini:
-Djava.library.path=/usr/lib/x86_64-linux-gnu/jni/
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Defining a variable with or without export
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Specifically export makes the variable available to child processes via the environment.
– Beano
Jul 21 '09 at 13:35
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Is there a built in function for string natural sort?
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There is a third party library for this on PyPI called natsort (full disclosure, I am the package's author). For your case, you can do either of the following:
>>> from natsort import natsorted, ns
>>> x = ['Elm11', 'Elm12', 'Elm2', 'elm0', 'elm1', 'elm1...
Is there a HTML opposite to ?
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Not allowed in the xhtml standard at least.
– Dykam
Aug 4 '09 at 19:56
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