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How do you find all subclasses of a given class in Java?
...w ClassPathScanningCandidateComponentProvider(false);
provider.addIncludeFilter(new AssignableTypeFilter(MyClass.class));
// scan in org.example.package
Set<BeanDefinition> components = provider.findCandidateComponents("org/example/package");
for (BeanDefinition component : components)
{
...
How to add include path in Qt Creator?
... .pro file as documented in the qmake Variable Reference:
INCLUDEPATH += <your path>
If you are using your own build system, you create a project by selecting "Import of Makefile-based project". This will create some files in your project directory including a file named <your project n...
Else clause on Python while statement
... handle_false()
An example might be along the lines of:
while value < threshold:
if not process_acceptable_value(value):
# something went wrong, exit the loop; don't pass go, don't collect 200
break
value = update(value)
else:
# value >= threshold; pass go, co...
Java: Check if enum contains a given string?
...very large you could stick the values in a HashSet:
public static HashSet<String> getEnums() {
HashSet<String> values = new HashSet<String>();
for (Choice c : Choice.values()) {
values.add(c.name());
}
return values;
}
Then you can just do: values.contains("your...
usr/bin/ld: cannot find -l
...ernets that suggested to run make with LD_DEBUG=all:
LD_DEBUG=all make
Although I got a TON of debugging output, it wasn't actually helpful. It added more confusion than anything else. So, I was about to give up.
Then, I had an epiphany. I thought to actually check the help text for the ld co...
Is it possible to set transparency in CSS3 box-shadow?
...#000;
}
div.b {
box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);
}
<div class="a">100% black shadow</div>
<div class="b">50% black shadow</div>
share
|
improve ...
Is there any simple way to find out unused strings in Android project?
... Unused resources
- Inconsistent array sizes (when arrays are defined in multiple configurations)
- Accessibility and internationalization problems (hardcoded strings, missing contentDescription, etc)
- Icon problems (like missing densities, duplicate icons, wrong sizes, etc)
- Usability problems (l...
Throwing cats out of windows
...cat has survived or not).
We try every possible floor to find the best result, hence min(f(k)) : for k in 1..n.
It agrees with Google result from Gaurav Saxena's link for (100, 2).
int n = 100; // number of floors
int m = 20; // number of cats
int INFINITY = 1000000;
int[][] a = new int[n + 1][m...
How do you tell if caps lock is on using JavaScript?
...const shiftKey = e.shiftKey;
if (charCode >= 97 && charCode <= 122) {
capsLock = shiftKey;
} else if (charCode >= 65 && charCode <= 90
&& !(shiftKey && IS_MAC)) {
capsLock = !shiftKey;
}
return capsLock;
}
OLD VERSION:
function isCap...
Syntax of for-loop in SQL Server
...ou're used to. It's focused on what, not how. You tell SQL Server what results you want, and let it figure out how to produce the answer. "
– ypercubeᵀᴹ
May 20 '11 at 8:05
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