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Why do we need boxing and unboxing in C#?
...
double e = 2.718281828459045;
object o = e; // box
int ee = (int)o; // runtime exception
Instead you must do this:
double e = 2.718281828459045;
object o = e; // box
int ee = (int)(double)o;
First we have to explicitly unbox the double ((double)o) and then cast that to an int.
What is the res...
write a shell script to ssh to a remote machine and execute commands
... -o PreferredAuthentications=publickey -o PubkeyAuthentication=yes' -i 'uptime; hostname -f'
If the file hosts.txt has a large number of entries, say 100, then the parallelism option may also be set to 100 to ensure that the commands are run concurrently:
pssh -i -h hosts.txt -p 100 -t 0 sleep...
How to ignore whitespace in a regular expression subject string?
Is there a simple way to ignore the white space in a target string when searching for matches using a regular expression pattern? For example, if my search is for "cats", I would want "c ats" or "ca ts" to match. I can't strip out the whitespace beforehand because I need to find the begin and en...
Ignoring SSL certificate in Apache HttpClient 4.3
...artially initialized response object. This has nothing to do with how many times #close gets invoked, but rather completely unnecessary null check in the finally clause
– ok2c
Nov 22 '13 at 10:43
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How to auto-center jQuery UI dialog when resizing browser?
...size event with .resize(), so it triggers the re-center at the appropriate time.
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pull/push from multiple remote locations
...date
If it's not currently connected to one of the remotes, it will take time out or throw an error, and go on to the next. You'll have to manually merge from the fetched repositories, or cherry-pick, depending on how you want to organize collecting changes.
To fetch the master branch from alt an...
How can I do an UPDATE statement with JOIN in SQL Server?
I need to update this table in SQL Server with data from its 'parent' table, see below:
16 Answers
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How do I see the current encoding of a file in Sublime Text?
...etting but ST3 shows the encoding next to the name on the status bar every time I save a file.
– fregante
Dec 30 '14 at 12:48
2
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Is Python strongly typed?
...ange of type requires an explicit conversion.
Dynamic typing means that runtime objects (values) have a type, as opposed to static typing where variables have a type.
As for your example
bob = 1
bob = "bob"
This works because the variable does not have a type; it can name any object. After bob=...
What does it mean when MySQL is in the state “Sending data”?
...hat further explains that the reasoning is most likely because of a lot of time doing disk access: dev.mysql.com/doc/refman/5.0/en/general-thread-states.html
– Matthew Kolb
Jul 30 '13 at 22:06
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