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What is a callback function?
...e.
Contrived example
Why would you want to do this? Let's say there is a service you need to invoke. If the service returns immediately, you just:
Call it
Wait for the result
Continue once the result comes in
For example, suppose the service were the factorial function. When you want the value...
When should I use semicolons in SQL Server?
...E is not the first statement in the batch. The second is where you issue a Service Broker statement and the Service Broker statement is not the first statement in the batch.
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Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...es.
A framework is a big library or group of libraries that provides many services (rather than perhaps only one focussed ability as most libraries/SDKs do). For example, .NET provides an application framework - it makes it easier to use most (if not all) of the disparate services you need (e.g. Wi...
IISExpress returns a 503 error from remote machines
...3351:localhost" />
</bindings>
add autorun for ISS Express start service automatically
<site name="NeuronCharts" id="2" serverAutoStart="true">
Add some weird rules to http server (I still do not know if this is nesseary)
netsh http add urlacl url=http://mylocaldomain.com:53351/...
How to debug Apache mod_rewrite
...writeLogLevel 3
Then enter
$ a2enmod rewrite-log
followed by
$ service apache2 restart
And when you finished with debuging your rewrite rules
$ a2dismod rewrite-log && service apache2 restart
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Best/Most Comprehensive API for Stocks/Financial Data [closed]
... yahoo api no longer working It has come to our attention that this service is being used in violation of the Yahoo Terms of Service. As such, the service is being discontinued. For all future markets and equities data research, please refer to finance.yahoo.com.
– James...
How to check internet access on Android? InetAddress never times out
...ery fast. It needs to run in a separate task though (e.g. ScheduledExecutorService or AsyncTask).
Possible Questions
Is it really fast enough?
Yes, very fast ;-)
Is there no reliable way to check internet, other than testing something on the internet?
Not as far as I know, but let me know, and ...
Difference between @Mock and @InjectMocks
... into it.
For example
@Mock
StudentDao studentDao;
@InjectMocks
StudentService service;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
Here we need the DAO class for the service class. So, we mock it and inject it in the service class instance.
Simila...
How do I see if Wi-Fi is connected on Android?
...ailable.
ConnectivityManager connManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (mWifi.isConnected()) {
// Do whatever
}
NOTE: It should be noted (for us n00bies here) that you ...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...rams
Make sure the Firewall, or Anti-virus software isn't blocking MySQL service.
Stop iptables temporarily on linux. If iptables are misconfigured they may allow tcp packets to be sent to mysql port, but block tcp packets from coming back on the same connection.
# Redhat enterprise and CentOS
s...