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My docker container has no internet
...n/start a container, docker will populate /etc/resolv.conf with the values from daemon.json.
2. Fix the hosts's /etc/resolv.conf
A. Ubuntu 16.04 and earlier
For Ubuntu 16.04 and earlier, /etc/resolv.conf was dynamically generated by NetworkManager.
Comment out the line dns=dnsmasq (with a #)...
Return array in a function
...rk:
int fillarr(int* arr)
So in the same sense, what you want to return from your function is actually a pointer to the first element in the array:
int* fillarr(int arr[])
And you'll still be able to use it just like you would a normal array:
int main()
{
int y[10];
int *a = fillarr(y);
...
Smooth GPS data
...mple Kalman filter that could be used for exactly this situation. It came from some work I did on Android devices.
General Kalman filter theory is all about estimates for vectors, with the accuracy of the estimates represented by covariance matrices. However, for estimating location on Android de...
What is difference between Collection.stream().forEach() and Collection.forEach()?
... Iterable.forEach takes the collection's lock. Where is this information from? I'm unable to find such behavior in JDK sources.
– turbanoff
Aug 25 '15 at 12:40
...
'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
... just Install “Microsoft System CLR Types for SQL Server 2012”
it’s from https://www.microsoft.com/en-us/download/details.aspx?id=29065
Or Use Direct Link Below
Direct Link to X86 :http://go.microsoft.com/fwlink/?LinkID=239643&clcid=0x409
, Or Direct Link to X64 :http://go.microsoft.com/...
How to install packages using pip according to the requirements.txt file from a local directory?
...
Information on --no-index from command pip help install --no-index Ignore package index (only looking at --find-links URLs instead). Information on --find-links from command pip help install -f, --find-links <url> If a url or path to an html f...
How to start two threads at “exactly” the same time
...o start just 2 threads at the same time, but let's control that
// timing from the main thread. That's why we have 3 "parties" instead of 2.
final CyclicBarrier gate = new CyclicBarrier(3);
Thread t1 = new Thread(){
public void run(){
gate.await();
//do stuff
}};
Thread...
How to access java-classes in the default-package?
...
You can’t use classes in the default package from a named package.
(Technically you can, as shown in Sharique Abdullah's answer through reflection API, but classes from the unnamed namespace are not in scope in an import declaration)
Prior to J2SE 1.4 you could import c...
Read environment variables in Node.js
...
When using Node.js, you can retrieve environment variables by key from the process.env object:
for example
var mode = process.env.NODE_ENV;
var apiKey = process.env.apiKey; // '42348901293989849243'
Here is the answer that will explain setting environment variables in node.js
...
Hashing a string with Sha256
...ta you're hashing. Hashing the two bytes "Hi" will give a different result from hashing the three bytes "Hi". You'll have to decide which you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.)
For ASCII text, Encoding.UTF8 will definitely be suitable. If you're a...