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Best practice to validate null and empty collection in Java
I want to verify whether a collection is empty and null . Could anyone please let me know the best practice.
9 Answers
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Shortcut to open file in Vim
...abe **/header.h
Hit tab to see various completions if there is more than one match.
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Shell script “for” loop syntax
... your example it would be:
max=10
for i in `seq 2 $max`
do
echo "$i"
done
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Using jquery to get all checked checkboxes with a certain class name
...ce. Also, $('.theClass:checkbox:not(:checked)') will get all the unchecked ones.
– Venugopal M
Jun 11 '19 at 9:01
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How to disable JavaScript in Chrome Developer Tools?
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The quickest way is problably this one:
F12 to open the dev console
ctrl + shift + p to open the command tool (windows)
Type 'disable javascript' and hit enter
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Error on renaming database in SQL Server 2008 R2
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That's because someone else is accessing the database. Put the database into single user mode then rename it.
This link might help:
http://msdn.microsoft.com/en-IN/library/ms345378(v=sql.105).aspx
and also:
http://msdn.microsoft.com/en-us/lib...
DISABLE the Horizontal Scroll [closed]
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That worked great. I'm glad I found someone that understood what I was saying! I will accept as soon as I can.
– user2371301
Jul 19 '13 at 22:55
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How can I get rid of an “unused variable” warning in Xcode?
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@orionelenzil - well, yes and no. There is a real interface problem with false positives. The warning pops up constantly while you're writing code if you haven't gotten to the part of the code where you use the variable. Over tim...
C# Create New T()
...am glad to have learned this today. Given the context of my method, I've gone for the reflection solution. Cheers!
– Hanshan
Jun 30 '11 at 3:35
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Keyword not supported: “data source” initializing Entity Framework Context
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Ok, that was another attribute, forgot that one. Added it now it is metadata=res://*/MainDB.csdl|res://*/MainDB.ssdl|res://*/MainDB.msl;provider=System.Data.SqlClient;provider name=System.Data.EntityClient;provider connection string="{0};App=EntityFramework&am...