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Combining two expressions (Expression)
... .ReplacePar("parAdrZ", ExprAdres("Z").Body);
return UBEZPIECZONY.Select((Expression<Func<UBEZPIECZONY, UbezpExt>>)expr2);
}
}
And this is the subexpression building code:
public static Expression<Func<UBEZPIECZONY, UBEZP_ADRES>> ExprAdres(string sTyp)
{
r...
Java 256-bit AES Password-Based Encryption
...
Share the password (a char[]) and salt (a byte[]—8 bytes selected by a SecureRandom makes a good salt—which doesn't need to be kept secret) with the recipient out-of-band. Then to derive a good key from this information:
/* Derive the key, given password and salt. */
SecretKeyFa...
Transaction isolation levels relation with locks on table
... writes data and commit/rollback (depending on results). B just executes a SELECT statement to read data. C reads and updates data. All these process work on the same table T.
READ UNCOMMITTED - no lock on the table. You can read data in the table while writing on it. This means A writes data (unc...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...the values in your code be reused to compute the cluster quality to aid in selecting the number of optimal clusters?
– Legend
Jul 11 '11 at 6:10
6
...
Is there a way for multiple processes to share a listening socket?
...nt
polling mechanisms:
aio/devpoll/epoll/eventpoll/kqueue/poll/rtsig/select
When a connection arrives on any of the listening sockets
(POP3/IMAP/SMTP), each worker process emerges from its event poll,
since each NGINX worker process inherits the listening socket. Then,
each NGIN...
Usage of __slots__?
...This message comes from the oldest protocol, which is the default. You can select the latest protocol with the -1 argument. In Python 2.7 this would be 2 (which was introduced in 2.3), and in 3.6 it is 4.
>>> pickle.loads(pickle.dumps(f, -1))
<__main__.Foo object at 0x1129C770>
in Py...
How can I add additional PHP versions to MAMP
...5.4.4. I need 5.3.X. Is there a way to add additional versions that can be selected in the MAMP interfaces php preferences? This is for the free version of MAMP, not MAMP PRO.
...
How to detect if app is being built for device or simulator in Swift
...n -D IOS_SIMULATOR in Swift Compiler - Custom Flags > Other Swift Flags
Select Any iOS Simulator SDK in this drop down
Now you could use this statement to detect simulator:
#if IOS_SIMULATOR
print("It's an iOS Simulator")
#else
print("It's a device")
#endif
Also you could extend UID...
Pick a random element from an array
...low
Just to answer your question, you can do this to achieve random array selection:
let array = ["Frodo", "sam", "wise", "gamgee"]
let randomIndex = Int(arc4random_uniform(UInt32(array.count)))
print(array[randomIndex])
The castings are ugly, but I believe they're required unless someone else h...
How to use ArrayAdapter
... mAdapter.add("Item " + i);
}
// And if you want selection feedback:
list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//...