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How do I join two lists in Java?
Conditions: do not modifiy the original lists; JDK only, no external libraries. Bonus points for a one-liner or a JDK 1.3 version.
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Using LIMIT within GROUP BY to get N results per group?
...table.id, yourtable.year DESC;
Please see fiddle here.
Please note that if more than one row can have the same rate, you should consider using GROUP_CONCAT(DISTINCT rate ORDER BY rate) on the rate column instead of the year column.
The maximum length of the string returned by GROUP_CONCAT is lim...
Make Bootstrap Popover Appear/Disappear on Hover instead of Click
... which is the better option, JS initialization or data-attributes ? Even if I use data-attributes, I still would have to call $("#popover").popover(); from my JavaScript.
– Bailey
Jan 3 '18 at 7:58
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What is the default access specifier in Java?
I just started reading a Java book and wondered; which access specifier is the default one, if none is specified?
12 Answer...
Why does C# not provide the C++ style 'friend' keyword? [closed]
...ut the internal classes and their use you should be fine.
EDIT Let me clarify how the friend keyword undermines OOP.
Private and protected variables and methods are perhaps one of the most important part of OOP. The idea that objects can hold data or logic that only they can use allows you to writ...
How to order citations by appearance using BibTeX?
...e three good answers to this question.
Use the unsrt bibliography style, if you're happy with its formatting otherwise
Use the makebst (link) tool to design your own bibliography style
And my personal recommendation:
Use the biblatex package (link). It's the most complete and flexible bibliogr...
Remove all files except some from a directory
...th] -type f -not -name 'textfile.txt' -not -name 'backup.tar.gz' -delete
If you don't specify -type f find will also list directories, which you may not want.
Or a more general solution using the very useful combination find | xargs:
find [path] -type f -not -name 'EXPR' -print0 | xargs -0 rm ...
Why are Perl 5's function prototypes bad?
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Prototypes aren't bad if used correctly. The difficulty is that Perl's prototypes don't work the way people often expect them to. People with a background in other programming languages tend to expect prototypes to provide a mechanism for checking...
Best way of invoking getter by reflection
I need to get the value of a field with a specific annotation, So with reflection I am able to get this Field Object. The problem is that this field will be always private though I know in advance it will always have a getter method. I know that I can use setAccesible(true) and get its value (when t...
Python list iterator behavior and next(iterator)
...tions, each iteration resulting in 2 lines being written to the terminal.
If you assign the output of next() things work as expected:
>>> a = iter(list(range(10)))
>>> for i in a:
... print(i)
... _ = next(a)
...
0
2
4
6
8
or print extra information to differentiate the ...