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About Java cloneable
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The first thing you should know about Cloneable is - don't use it.
It is very hard to implement cloning with Cloneable right, and the effort is not worth it.
Instead of that use some other options, like apache-commons SerializationUtils (deep-clone) o...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
... get is how multiple clients can simultaneously connect to say port 80. I know each client has a unique (for their machine) port. Does the server reply back from an available port to the client, and simply state the reply came from 80? How does this work?
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Remote debugging with Android emulator
...k configuration above, open Putty, go to Connection > SSH > Tunnels. Now add an entry with Source-port: 5556 and Destination: localhost:5554. Repeat the same with Source-port: 5557 and Destination: localhost:5555. Cheers!
– gsbabil
Jul 30 '13 at 16:54
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UITableViewCell Separator disappearing in iOS7
...s not shown!
I overrode layoutSubviews in my UITableViewCell subclass and now the separators are displayed reliably:
Objective-C:
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.contentView.superview.subviews) {
if ([NSStringFromClass(subview.class) ...
git: 'credential-cache' is not a git command
...e msysgit has been superseded by Git for Windows, using Git for Windows is now the easiest option. Some versions of the Git for Windows installer (e.g. 2.7.4) have a checkbox during the install to enable the Git Credential Manager. Here is a screenshot:
Still using msysgit? For msysgit versions ...
Error when trying to obtain a certificate: The specified item could not be found in the keychain
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It seems like OS X now defaults to the first item being selected now. If you just choose a different keychain (i.e System) when you generate this it should fix the issue.
– James Parker
Jan 20 '16 at 14:25...
Java Security: Illegal key size or default parameters?
...ed a question about this earlier, but it didn't get answered right and led nowhere.
19 Answers
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Convert Year/Month/Day to Day of Year in Python
...ery simple solution:
from datetime import datetime
day_of_year = datetime.now().timetuple().tm_yday
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How do I convert an interval into a number of hours with postgres?
...you want integer i.e. number of days:
SELECT (EXTRACT(epoch FROM (SELECT (NOW() - '2014-08-02 08:10:56')))/86400)::int
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Java string to date conversion
...UR_OF_DAY));
Then you can manipulate that with something like:
Calendar now = Calendar.getInstance();
mydate.set(Calendar.YEAR,2009);
mydate.set(Calendar.MONTH,Calendar.FEBRUARY);
mydate.set(Calendar.DAY_OF_MONTH,25);
mydate.set(Calendar.HOUR_OF_DAY,now.get(Calendar.HOUR_OF_DAY));
mydate.set(Cale...