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How can I use a local image as the base image with a dockerfile?
...t) it goes straight to attempting to pull from registry stackoverflow.com/q/27046118/202168
– Anentropic
Nov 20 '14 at 17:43
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Performance of Arrays vs. Lists
Say you need to have a list/array of integers which you need iterate frequently, and I mean extremely often. The reasons may vary, but say it's in the heart of the inner most loop of a high volume processing.
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How to properly compare two Integers in Java?
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No, == between Integer, Long etc will check for reference equality - i.e.
Integer x = ...;
Integer y = ...;
System.out.println(x == y);
this will check whether x and y refer to the same object rather than equal objects.
So
Integer x = new Integer(10);
Integer y = new Integer(10...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
This is a syntax question. I have a generic class which is inheriting from a generic base class and is applying a constraint to one of the type parameters. I also want the derived class to implement an interface. For the life of me, I cannot seem to figure out the correct syntax.
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Create a tar.xz in one command
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or
tar c some-dir | bzip2 > some-dir.tar.bz2
Decompressing is also quite straightforward:
xzcat tarball.tar.xz | tar x
bzcat tarball.tar.bz2 | tar x
zcat tarball.tar.gz | tar x
If you have only tar archive, you can use cat:
cat archive.tar | tar x
If you need to list the files only, us...
scala vs java, performance and memory? [closed]
I am keen to look into Scala, and have one basic question I cant seem to find an answer to:
in general, is there a difference in performance and usage of memory between Scala and Java?
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What is the best way to force yourself to master vi? [closed]
...oductivity hit. It did help having a vimmer next to me to continuously ask questions. Find someone who knows vim well and make friends with them! Quickly look at the nav keys and get a handle on the modes. Try it out in 15 min chunks, you'll get it.
– camflan
S...
Synchronise ScrollView scroll positions - android
...est;
import android.app.Activity;
import android.os.Bundle;
public class Q3948934 extends Activity implements ScrollViewListener {
private ObservableScrollView scrollView1 = null;
private ObservableScrollView scrollView2 = null;
@Override
protected void onCreate(Bundle savedInsta...
What components are MVC in JSF MVC framework?
...e to choose
Passing a JSF2 managed pojo bean into EJB or putting what is required into a transfer object
Filter do not initialize EntityManager
javax.persistence.TransactionRequiredException in small facelet application
In the book The Definitive Guide to JSF in Java EE 8, in chapter 8 "Backing be...
How can I access my localhost from my Android device?
...rst find out your router external IP address (https://www.google.de/search?q=myip)
then, on the router, forward some port to <your desktop IP>:<server port number>
finally use the external IP address and forwarded port
Otherwise use something like xip.io or ngrok.
NOTE: The ifconfig c...