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Convert list to array in Java [duplicate]
...trinsified, making the performance of the empty array version
the same and sometimes even better, compared to the pre-sized
version. Also passing pre-sized array is dangerous for a concurrent or
synchronized collection as a data race is possible between the
size and toArray call which ...
How to get all of the immediate subdirectories in Python
... return the full path to all current subdirectories.
tl;dr:
Always use scandir:
list_subfolders_with_paths = [f.path for f in os.scandir(path) if f.is_dir()]
Bonus: With scandir you can also simply only get folder names by using f.name instead of f.path.
This (as well as all other functions b...
Java: Get first item from a collection
... That does the same thing, it just checks if it is a list first, and gets by index if it is. It also has some code to try to fail faster on an actual Collection (that is if the index is too large it tries to figure that out without iterating through the whole thing and throwing the excepti...
Setting ANDROID_HOME enviromental variable on Mac OS X
Could anybody post a working solution for setting ANDROID_HOME via the terminal?
12 Answers
...
Can you use @Autowired with static fields?
...ou find old code doing this, it's an anti-pattern. Squint, tilt your head, and find a better way to solve the problem. You'll be glad you did.
– Joseph Lust
Apr 18 '13 at 18:05
2
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Detect Android phone via Javascript / jQuery
How would i detect that the device in use is an Android for a mobile website?
5 Answers
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Uncatchable ChuckNorrisException
...cp . TestVillain
Gotcha!
The end.
Comment out "extends RuntimeException" and recompile ChuckNorrisException.java only :
javac -cp . ChuckNorrisException.java
Run:
java -cp . TestVillain
Exception in thread "main" java.lang.VerifyError: (class: TestVillain, method: main signature: ([Ljava/lang/...
Java: is there a map function?
...a function in the JDK as of java 6.
Guava has a Function interface though and the
Collections2.transform(Collection<E>, Function<E,E2>)
method provides the functionality you require.
Example:
// example, converts a collection of integers to their
// hexadecimal string representations
...
How to define an alias in fish shell?
...
# Then, to save it across terminal sessions:
funcsave rmi
This last command creates the file ~/.config/fish/functions/rmi.fish.
Interested people might like to find out more about fish aliases in the official manual.
sha...
Where does Vagrant download its .box files to?
What happens to the .box file after the following command is executed?
8 Answers
8
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