大约有 31,100 项符合查询结果（耗时：0.0367秒） [XML]
Pick a random value from an enum?
... return clazz.getEnumConstants()[x];
}
Which you'll use:
randomEnum(MyEnum.class);
I also prefer to use SecureRandom as:
private static final SecureRandom random = new SecureRandom();
share
|
...
How to set the focus for a particular field in a Bootstrap modal, once it appears
...ctually their both are working and they are different events. Sorry ignore my first sentence.
– Vladyn
Mar 15 '17 at 13:14
...
How to import an existing X.509 certificate and private key in Java keystore to use in SSL?
...deststorepass storepassword \
-destkeypass keypassword \
-destkeystore my-keystore.jks \
-srckeystore cert-and-key.p12 \
-srcstoretype PKCS12 \
-srcstorepass p12password \
-alias 1
Or just use more user-friendly KeyMan from IBM for keystore handling instead of keytool.
...
How do I migrate a model out of one django app and into a new one?
...w to migrate using south.
Lets say we got two apps: common and specific:
myproject/
|-- common
| |-- migrations
| | |-- 0001_initial.py
| | `-- 0002_create_cat.py
| `-- models.py
`-- specific
|-- migrations
| |-- 0001_initial.py
| `-- 0002_create_dog.py
`-- models.p...
Which @NotNull Java annotation should I use?
I'm looking to make my code more readable as well as use tooling like IDE code inspection and/or static code analysis (FindBugs and Sonar) to avoid NullPointerExceptions. Many of the tools seem incompatible with each others' @NotNull / @NonNull / @Nonnull annotation and listing all of them in my ...
How do I use shell variables in an awk script?
...
Setting a variable before running AWK, you can print it out like this:
X=MyVar
awk 'BEGIN{print ENVIRON["X"],ENVIRON["SHELL"]}'
MyVar /bin/bash
ARGV input
As Steven Penny writes, you can use ARGV to get the data into awk:
v="my data"
awk 'BEGIN {print ARGV[1]}' "$v"
my data
To get the data...
How to access command line arguments of the caller inside a function?
...
My reading of the bash ref manual says this stuff is captured in BASH_ARGV,
although it talks about "the stack" a lot.
#!/bin/bash
function argv {
for a in ${BASH_ARGV[*]} ; do
echo -n "$a "
done
echo
}
f...
Decorators with parameters?
...ed to the decorated function).
I use a simple trick with partials to make my decorators easy
from functools import partial
def _pseudo_decor(fun, argument):
def ret_fun(*args, **kwargs):
#do stuff here, for eg.
print ("decorator arg is %s" % str(argument))
return fun(*...
Why use AJAX when WebSockets is available?
... a while now, I have chosen to create an Agile project management tool for my final year project at University utilizing Node server and WebSockets. I found using WebSockets provided a 624% increase in the number of requests per second my application could process.
...
nvarchar(max) vs NText
...
OIC, I am using SQL Server CE, which DOES limit my nvarchar(max) to 4000 characters. So for SQL Server Compact, I have no choice but to use ntext in some cases. When they discontinue it, I suppose I will just have to not upgrade some sites.
– VoidKing...