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“Instantiating” a List in Java? [duplicate]
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In Java, List is an interface. That is, it cannot be instantiated directly.
Instead you can use ArrayList which is an implementation of that interface that uses an array as its backing store (hence the name).
Since ArrayList is a kin...
Where are Docker images stored on the host machine?
...tents of the /var/lib/docker directory vary depending on the driver Docker is using for storage.
By default this will be aufs but can fall back to overlay, overlay2, btrfs, devicemapper or zfs depending on your kernel support. In most places this will be aufs but the RedHats went with devicemapper...
How to deploy an ASP.NET Application with zero downtime
...er 1
Deploy on Server 2
Test Server 2
Turn traffic on both servers
Thing is, even in this case you will still have application restarts and loss of sessions if you are using "sticky sessions". If you have database sessions or a state server, then everything should be fine.
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Why is Java Vector (and Stack) class considered obsolete or deprecated?
Why is Java Vector considered a legacy class, obsolete or deprecated?
5 Answers
5
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Is it bad to have my virtualenv directory inside my git repository?
...y for the app. It seems like an easy way to keep deploy's simple and easy. Is there any reason why I shouldn't do this?
9 A...
support FragmentPagerAdapter holds reference to old fragments
...agment has been instantiated/added in a ViewPager at a particular time - this should be considered an implementation detail. A ViewPager does lazy loading of its pages; by default it only loads the current page, and the one to the left and right.
If you put your app into the background, the fragmen...
Creating an object: with or without `new` [duplicate]
This is probably a basic question, and might have already been asked (say, here ); yet I still don't understand it. So, let me ask it.
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Volatile boolean vs AtomicBoolean
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They are just totally different. Consider this example of a volatile integer:
volatile int i = 0;
void incIBy5() {
i += 5;
}
If two threads call the function concurrently, i might be 5 afterwards, since the compiled code will be somewhat similar to this (except ...
Is there a Python equivalent to Ruby's string interpolation?
... Ruby's string interpolation. Starting with that version of Python (which is scheduled to be released by the end of 2016), you will be able to include expressions in "f-strings", e.g.
name = "Spongebob Squarepants"
print(f"Who lives in a Pineapple under the sea? {name}.")
Prior to 3.6, the close...
Vertex shader vs Fragment Shader [duplicate]
I've read some tutorials regarding Cg, yet one thing is not quite clear to me.
What exactly is the difference between vertex and fragment shaders?
And for what situations is one better suited than the other?
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