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Spring @Autowired usage
...ht even be a better solution for starting partial contexts, which is a big win But you can combine these quite easily by using @Autowired/@Inject on constructors (in other words, switch to constructor injection).
– krosenvold
Sep 9 '13 at 11:21
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c# open a new form then close the current form?
...
there is no Closed event in windows forms in dot net. Can you tell me is it FormClosed event
– Anjali
Jul 11 '14 at 9:47
2
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Getting Chrome to accept self-signed localhost certificate
...h this.
Please do not change your browser security settings.
With the following code, you can (1) become your own CA, (2) then sign your SSL certificate as a CA. (3) Then import the CA certificate (not the SSL certificate, which goes onto your server) into Chrome/Chromium. (Yes, this works even on L...
How to use PHP OPCache?
...you will first have to enable it. To do this you would have to do the following.
Add the following line to your php.ini:
zend_extension=/full/path/to/opcache.so (nix)
zend_extension=C:\path\to\php_opcache.dll (win)
Note that when the path contains spaces you should wrap it in quotes:
zend_exten...
Why should I avoid using Properties in C#?
...
write-only; field access is always
readable and writable.
This is a win for properties, since you have more fine-grained control of access.
A property method may throw an
exception; field access never throws
an exception.
While this is mostly true, you can very well call a method on...
How to override equals method in Java
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The winning answer on this question has an excellent explanation of why you override hashCode() stackoverflow.com/a/27609/1992108
– Pegasaurus
Apr 12 '18 at 16:16
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How do I check if a list is empty?
For example, if passed the following:
27 Answers
27
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Suppress warning CS1998: This async method lacks 'await'
...int result = ...;
return Task.FromResult(result);
}
In the case of throwing NotImplementedException, the procedure is a bit more wordy:
public Task<int> Fail() // note: no "async"
{
var tcs = new TaskCompletionSource<int>();
tcs.SetException(new NotImplementedException());
ret...
What is a race condition?
... thread changed x in between the check and act. You have no real way of knowing.
In order to prevent race conditions from occurring, you would typically put a lock around the shared data to ensure only one thread can access the data at a time. This would mean something like this:
// Obtain lock fo...
MongoDB vs. Cassandra [closed]
...han you would in your present database. This would be the most significant win for Mongo.
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