大约有 40,000 项符合查询结果（耗时：0.0498秒） [XML]
JUnit test with dynamic number of tests
... as only one test that may fail or succeed. But I am interested in the results on each individual file. How can I write a TestCase / TestSuite such that each file shows up as a separate test e.g. in the graphical TestRunner of Eclipse? (Coding an explicit test method for each file is not an opti...
What is the best Java email address validation method? [closed]
... are the good email address validation libraries for Java? Are there any alternatives to commons validator ?
19 Answers
...
Regular expression to match balanced parentheses
...ular expressions and you have no choice.
– Kenneth Baltrinic
May 2 '14 at 3:31
1
...
Kotlin Ternary Conditional Operator
... false to provide a structure similar to the ternary operator:
infix fun <T> Boolean.then(param: T): T? = if (this) param else null
This would make an a ? b : c expression translate to a then b ?: c, like so:
println(condition then "yes" ?: "no")
Update:
But to do some more Java-like con...
How to convert an enum type variable to a string?
...ndexed by the enum.
If you do a lot of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
share
|
improve this answer
|
fol...
wpf: how to show tooltip when button disabled by command?
I'm trying to show a tooltip regardless of a buttons state, but this does not seem to do the trick:
3 Answers
...
Test for equality among all elements of a single vector
...dividing by the mean:
# Determine if range of vector is FP 0.
zero_range <- function(x, tol = .Machine$double.eps ^ 0.5) {
if (length(x) == 1) return(TRUE)
x <- range(x) / mean(x)
isTRUE(all.equal(x[1], x[2], tolerance = tol))
}
If you were using this more seriously, you'd probably wa...
How to initialize an array in one step using Ruby?
...r each entry will be:
array = Array.new(3) { |i| (i+1).to_s }
Finally, although it doesn't produce the same array of three strings as the other answers above, note also that you can use enumerators in Ruby 1.8.7+ to create arrays; for example:
array = 1.step(17,3).to_a
#=> [1, 4, 7, 10, 13, 1...
How to do a non-greedy match in grep?
...ier ? after the quantifier. For example you can change .* to .*?.
By default grep doesn't support non-greedy modifiers, but you can use grep -P to use the Perl syntax.
share
|
improve this answer
...
Don't reload application when orientation changes
...tation by adding android:screenOrientation="portrait" (or "landscape") to <activity> in your manifest.
You could tell the system that you meant to handle screen changes for yourself by specifying android:configChanges="orientation|screenSize" in the <activity> tag. This way the activity...