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Which Java Collection should I use?

...nly the immediate-neighbor links to point to the new element or bypass the now-deleted element. Map: An interface representing an Collection where each element has an identifying "key"--each element is a key-value pair. HashMap: A Map where keys are unordered, and backed by a Hashtable. Linkedhas...
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How to use JUnit and Hamcrest together?

... Hamcrest 1.3 has now been released, and is in maven central. – Tom Jul 28 '12 at 9:55 4 ...
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What does the ??!??! operator do in C?

...ASCII, but not US-ASCII) there were 18 region-specific codes, but I don't know which codes they were. The one thing I can say for sure - in the British "ASCII", # was replaced with £. In other regions, maybe "ASCII" had no braces etc. – Steve314 Oct 20 '11 at ...
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PopupWindow - Dismiss when clicked outside

...ave missed it. Are you using setBackgroundDrawable on your popupWindow? I know that setting the background drawable to null kills the OnTouchListener – Marcin S. Sep 2 '12 at 1:58 ...
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CSS styling in Django forms

..."class":css}) Put this in your app's templatetags/ folder and you can now do {{field|addcss:"form-control"}} share | improve this answer | follow | ...
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Postgres: clear entire database before re-creating / re-populating from bash script

... i like this solution, since i do want a backup copy, i'm now doing this: pg_dump -Ft -U production_db_name > /backup/dir/backup-${time}.tar pg_restore -U development_db_name -d development_db_name -O --clean /backup/dir/backup-${time}.tar works like a charm, thanks for your help...
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java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'

...For java it's still just "utf-8", but MySQL needs a distinction. I don't know what driver you are using but a driver agnostic way to set connection charset is to send the query: SET NAMES 'utf8mb4' Right after making the connection. See also this for Connector/J: 14.14: How can I use 4-byt...
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Difference of keywords 'typename' and 'class' in templates?

... As of GCC 5, G++ now allows typename in a template template parameter. – Chnossos Nov 8 '14 at 11:16 ...
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What is the native keyword in Java for?

...212: protected native Object clone() throws CloneNotSupportedException; Now comes the hard part, finding where clone is amidst all the indirection. The query that helped me was: find . -iname object.c which would find either C or C++ files that might implement Object's native methods. It leads...
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How to log SQL statements in Grails

... @biniam_Ethiopia As far as I know, this is not possible. I want this as well as it's annoying for debugging certain classes and not wanting to see other queries as well. – Guus Oct 23 '15 at 16:22 ...