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Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
I just came across a weird error:
9 Answers
9
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How can I get column names from a table in SQL Server?
I want to query the name of all columns of a table. I found how to do this in:
20 Answers
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Xcode + remove all breakpoints
... In Xcode 4, this doesn't show or delete all breakpoints, just some of them. Try adding a breakpoint from the command line, and you'll see that it doesn't show up in this list.
– James Moore
Mar 7 '13 at 22:33
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Android: Align button to bottom-right of screen using FrameLayout?
...both alignParentBottom="true" and alignParentRight="true" , but with Framelayout I did not find any such attributes. How do I align it to the bottom-right of screen?
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How to put space character into a string name in XML?
i have defined some strings in the strings.xml file. Now I need to put some extra space between some numbers in the string. When I type extra space characters this is not showing on the application though.
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How can I use Python to get the system hostname?
...I would like be able to identify computers and get the user-set computer name with Python.
11 Answers
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Convert text into number in MySQL query
...r within MySQL query? I have a column with an identifier that consists a name and a number in the format of "name-number". The column has VARCHAR type. I want to sort the rows according the number (rows with the same name) but the column is sorted according do character order, i.e.
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run main class of Maven project [duplicate]
...h Maven. Is there a way that the main class (which doesn't require any arguments) can be run from the command-line using a maven command like:
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C compiler for Windows? [closed]
...ng MinGW in Windows does not solve the problems to handle LibVLC and Gstreamer's. By using MinGW crash the executables. Is there any better solution?
– user285594
Mar 23 '15 at 21:53
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How to create a bash script to check the SSH connection?
... $a
22/tcp open ssh
$ echo $b
(empty string)
But you'll have to grep the message (nmap does not use the return-value to show if a port was filtered, closed or open).
EDIT2:
If you're interested in the actual state of the ssh-port, you can substitute grep open with egrep 'open|closed|filtered':
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