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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
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An unmodifiable map may still change. It is only a view on a modifiable map, and changes in the backing map will be visible through the unmodifiable map. The unmodifiable map only prevents modifications for those who only have the ref...
How to merge multiple lists into one list in python? [duplicate]
...'s been well over a full year but you can use something like mylist = list(set(mylist)) after merging lists to get rid of the duplicates.
– kittenparry
Dec 19 '18 at 1:21
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How to scale a UIImageView proportionally?
...ke sure it would work as needed, but I don't remember the variable name to set. So I Google it and found this answer.
– Dino Tw
Feb 20 '14 at 17:38
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Update a record without first querying?
...the datastore. Example:
dataEntity.ExecuteStoreCommand
("UPDATE items SET itemstatus = 'some status' WHERE id = 123 ");
For performance reasons, you may want to pass in variables instead of a single hard coded SQL string. This will allow SQL Server to cache the query and reuse with parameter...
Quick unix command to display specific lines in the middle of a file?
Trying to debug an issue with a server and my only log file is a 20GB log file (with no timestamps even! Why do people use System.out.println() as logging? In production?!)
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Reminder - \r\n or \n\r?
I just can't remember those. So, what is the right way to properly terminate old fashioned ASCII lines?
10 Answers
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Parse date string and change format
I have a date string with the format 'Mon Feb 15 2010'. I want to change the format to '15/02/2010'. How can I do this?
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Understanding recursion [closed]
I'm having major trouble understanding recursion at school. Whenever the professor is talking about it, I seem to get it but as soon as I try it on my own it completely blows my brains.
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SQL command to display history of queries
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For MySQL > 5.1.11 or MariaDB
SET GLOBAL log_output = 'TABLE';
SET GLOBAL general_log = 'ON';
Take a look at the table mysql.general_log
If you want to output to a log file:
SET GLOBAL log_output = "FILE";
SET GLOBAL general_log_file = "/path/to/your/...
How do you format an unsigned long long int using printf?
...s for me in VS2008. Moreover, as far as I remember the MS C Compiler (when set up to compile straight C) is supposed to be C90 compliant by design; C99 introduced some things that not everyone liked.
– スーパーファミコン
Oct 11 '09 at 20:57
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