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How do you Force Garbage Collection from the Shell?
... java.lang:type=Memory
#bean is set to java.lang:type=Memory
$>run gc
#calling operation gc of mbean java.lang:type=Memory
#operation returns:
null
$>quit
#bye
Look at the docs on the jmxterm web site for information about embedding this in bash/perl/ruby/other scripts. I've used popen2 in ...
Get size of an Iterable in Java
...snippets, you should use the first one, because the second one will remove all elements from values, so it is empty afterwards. Changing a data structure for a simple query like its size is very unexpected.
For performance, this depends on your data structure. If it is for example in fact an ArrayL...
Sass combining parent using ampersand (&) with type selectors
... to join your tag to .element instead of #id?
There's a function in Sass called selector-unify() that solves this. Using this with @at-root it is possible to target .element.
#id > .element {
@at-root #{selector-unify(&, div)} {
color: blue;
}
}
Will compile to:
#id > ...
Making button go full-width?
...ou confirm the styles are being applied? Does the button's width change at all?
– Kenny Bania
Aug 22 '12 at 15:12
6
...
How to check if Location Services are enabled?
... Thank you for the code. Checking for location manager: lm.getAllProviders().contains(LocationManager.GPS_PROVIDER) (or NETWORK_PROVIDER) would make sure that you do not throw the user to a settings page where there is no network option.
– petter
N...
Any recommendations for a CSS minifier? [closed]
...minifier I try always breaks my styles. Is it because online minifiers are all crap? It shouldn't be that way.
– dialex
Aug 12 '12 at 14:42
...
Get name of currently executing test in JUnit 4
...ic.
JUnit 4.7.x - 4.8.x
The following approach will print method names for all tests in a class:
@Rule
public MethodRule watchman = new TestWatchman() {
public void starting(FrameworkMethod method) {
System.out.println("Starting test: " + method.getName());
}
};
...
Can one do a for each loop in java in reverse order?
...
The Collections.reverse method actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list.
As a more efficient solution, you could write a deco...
Visual Studio: Multiple post-build commands?
...
Important: When executing a batch file, you must use the "call" statement on order the following lines to be executed. If you don´t use "call", the execution goes into the .bat and doesn´t return to the following lines. Same as on DOS prompt.
e.g.:
call MyBatch1.bat
call MyBatch2...
How many characters can a Java String have?
...thought about using Java's functions for reversing Strings, but would they allow for a String to be this long?
7 Answers...