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Difference between __getattr__ vs __getattribute__
...efined. In the following example my class Count has no __getattr__ method. Now in main when I try to access both obj1.mymin and obj1.mymax attributes everything works fine. But when I try to access obj1.mycurrent attribute -- Python gives me AttributeError: 'Count' object has no attribute 'mycurrent...
Sending a message to nil in Objective-C
...ize(); ++i){
System.out.println(list.get(i).toString());
}
}
Now, if you call that method like so: someObject.foo(NULL); you're going to probably get a NullPointerException when it tries to access list, in this case in the call to list.size(); Now, you'd probably never call someObject....
EditorFor() and html properties
...
The formatting worked but now null is returned for the data effectively disabling the box.
– Joe
Nov 9 '12 at 5:15
2
...
Maximum single-sell profit
...pective max and min.
If we use this approach, our recurrence relation is now
T(1) <= O(1)
T(n) <= 2T(n / 2) + O(1)
Using the Master Theorem here gives us a runtime of O(n) with O(lg n) space, which is even better than our original solution!
But wait a minute - we can do even better than ...
Appending a vector to a vector [duplicate]
...o use reserve if you are repeatedly inserting into a vector for which you know the final size, and that size is large. Otherwise, I'd let the STL grow your vector as needed.
– moodboom
Sep 10 '13 at 16:24
...
Difference between volatile and synchronized in Java
...ariables cannot be reordered with each other. The difference is that it is now no longer so easy to reorder normal field accesses around them. Writing to a volatile field has the same memory effect as a monitor release, and reading from a volatile field has the same memory effect as a monitor acquir...
How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
...master:
mysqldump -u root -p --all-databases > /a/path/mysqldump.sql
Now you can release the lock, even if the dump hasn't ended yet. To do it, perform the following command in the MySQL client:
UNLOCK TABLES;
Now copy the dump file to the slave using scp or your preferred tool.
At the sla...
How important is the order of columns in indexes?
...while Column 1 above does negate 1/2 the possibilities, the index already knows which index page to go straight to for the Column2 value, it does not necessary need Column 1 to narrow down the set.
– CodeCowboyOrg
Mar 23 '15 at 17:57
...
What's the purpose of git-mv?
... in parallel. At some point if we want to merge the projects how will git know that it's the same file just renamed it's path? (if "git mv" == "git add + git rm")
– Rose
Dec 27 '12 at 0:22
...
How do you clone a Git repository into a specific folder?
...cal file explorers, so be sure to show hidden files.
mv /where/it/is/right/now/* /where/I/want/it/
mv /where/it/is/right/now/.* /where/I/want/it/
The first line grabs all normal files, the second line grabs dot-files. It is also possibe to do it in one line by enabling dotglob (i.e. shopt -s dotglo...