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Checking if all elements in a list are unique
What is the best way (best as in the conventional way) of checking whether all elements in a list are unique?
14 Answers
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notifyDataSetChange not working from custom adapter
...aving a parent object like ReceiptListObject instead of a List of objects, what can you do then to solve this problem?
– prom85
Feb 10 '14 at 17:38
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Why can't I define a default constructor for a struct in .NET?
...eters. According to this post this is mandated by the CLI specification. What happens is that for every value-type a default constructor is created (by the compiler?) which initialized all members to zero (or null ).
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Finding the id of a parent div using Jquery
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parent will indeed return the closest parent, however, what happens if he decides that he wants to add a fieldset or something around the question but inside the Div.
– Pim Jager
Feb 13 '09 at 14:16
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Do I need to close() both FileReader and BufferedReader?
...7 code should use the try-with-resources pattern". Thanks, that's exactly what I was looking for. This solution was written in '09, so the try-with-resources paradigm should probably be the new recommendation. Furthemore, it offers a better answer to the OP over the accepted and higher voted answ...
Updating address bar with new URL without hash or reloading the page
...these functions as well (e.g. ../new-url or ../../new-url. They seem to do what you would expect in Chrome at least.
– Mahn
Aug 3 '13 at 9:29
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SQL query to group by day
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actually this depends on what DBMS you are using but in regular SQL convert(varchar,DateColumn,101) will change the DATETIME format to date (one day)
so:
SELECT
sum(amount)
FROM
sales
GROUP BY
convert(varchar,created,101)
the mag...
EC2 instance types's exact network performance?
...tances that support this) do not increase the overall throughput ? This is what I am seeing on c4.large instances, and was looking for some validation.
– Abhinav
Mar 7 '17 at 9:04
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How can I get the executing assembly version?
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What would be interesting: Where do you need to specify the actual version? I specified the AssemblyVersion and AssemblyFileVersion in my AssemblyInfo.cs and all I get from the abovemethod call is: 0.0.0.0 despite having spec...
How do I make HttpURLConnection use a proxy?
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What if you have different username/password pairs for the different proxies? Calling a static method to set the default Authenticator isn't ideal, this is not much better than setting the sys properties method..
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