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What is a sealed trait?
...ut also part of a restricted (sealed ?) context where makes sense to check all possible subtypes like yes | no , even | odd etc...
– Mário de Sá Vera
Apr 7 '18 at 16:13
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What does the “+” (plus sign) CSS selector mean?
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So essentially in your example it will match the first <p> after <h1>, but would it also match that same <p> if it came before <h1>? Or is it only after?
– Vincent
Jan 2 '...
When should we call System.exit in Java
...its. This is a convenient way to handle shutdown in bigger programs, where all parts of the program can't (and shouldn't) be aware of each other. Then, if someone wants to quit, he can simply call System.exit(), and the shutdown hooks (if properly set up) take care of doing all necessary shutdown ce...
Mercurial undo last commit
How can I undo my last accidentally commited (not pushed) change in Mercurial?
7 Answers
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Change Git repository directory location.
...o I need to do to move the repo files to C:\dir1 ? I can obviously physically copy and paste the files, but what do I need to do on the Git side?
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How do I get list of all tables in a database using TSQL?
What is the best way to get the names of all of the tables in a specific database on SQL Server?
17 Answers
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How can I find non-ASCII characters in MySQL?
...ame WHERE columnToCheck NOT REGEXP '[A-Za-z0-9]';
That query will return all rows where columnToCheck contains any non-alphanumeric characters. If you have other characters that are acceptable, add them to the character class in the regular expression. For example, if periods, commas, and hyphens ...
“You have mail” message in terminal, os X [closed]
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and then type "d *" to erase all messages
– Ricardo Martins
Mar 20 '17 at 12:23
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How are “mvn clean package” and “mvn clean install” different?
...exactly are the differences between mvn clean package and mvn clean install ? When I run both of these commands, they both seem to do the same thing.
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Set cache-control for entire S3 bucket automatically (using bucket policies?)
...take some time.
Log in to AWS Management Console
Go into S3 bucket
Select all files by route
Choose "More" from the menu
Select "Change metadata"
In the "Key" field, select "Cache-Control" from the drop down menu
max-age=604800Enter (7 days) for Value
Press "Save" button
(thanks to @biplob - pleas...