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Check if one list contains element from the other
...ked, it works perfect as long as you have right equals implemented. that's all matters!
– Syed Siraj Uddin
Feb 8 '19 at 12:51
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Converting file size in bytes to human-readable string
...he other hand, hard disk manufacturers like to use decimal, so they would call it ~1.6GB.
And just to be confusing, floppy disks use a mixture of the two systems - their 1MB is actually 1024000 bytes.
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What is an initialization block?
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First of all, there are two types of initialization blocks:
instance initialization blocks, and
static initialization blocks.
This code should illustrate the use of them and in which order they are executed:
public class Test {
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
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For your needs, use ConcurrentHashMap. It allows concurrent modification of the Map from several threads without the need to block them. Collections.synchronizedMap(map) creates a blocking Map which will degrade performance, albeit ensure consistency (if used properl...
Jenkins / Hudson environment variables
...lso, any changes you make to $PATH in your local shell (one that you personally ssh into) will not show up in Jenkins.
To change the path that Jenkins uses, you have two options (AFAIK):
1) Edit your /etc/profile file and add the paths that you want there
2) Go to the configuration page of your s...
minimum double value in C/C++
Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?
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How do I provide a username and password when running “git clone git@remote.git”?
...nfiguration of the remote server.
Use ssh-agent to avoid typing passwords all the time
If you don't want to type your ssh password all the time, the typical solution is to generate a public/private key pair, put the public key in your ~/.ssh/authorized_keys file on the remote server, and load your...
URL matrix parameters vs. query parameters
...tp://example.com/res/categories;name=foo/objects;name=green/?page=1
It really comes down to namespacing.
Note: The 'levels' of resources here are categories and objects.
If only query parameters were used for a multi-level URL, you would end up with
http://example.com/res?categories_name=foo&...
Explanation of the UML arrows
...ort: A relationship between packages, indicating that one
package includes all the definitions of another.
14: Dependency: The definition or implementation of the dependent classifier might change if
the classifier at the arrowhead end is changed.
15: Realization: The class implements the operati...
Hover and Active only when not disabled
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I <3 this solution. allows me to have the following: <button class="button">hovers</button> and <button class="button no-hover>doesn't hover</button> by just using :not(.no-hover)
– Ben
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