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Static fields on a null reference in Java
... are not associated with an instance.
The ability to access static fields from an instance reference (as you are doing) is merely a syntactic sugar and has no additional meaning.
Your code compiles to
main.getNull();
Main.value
...
How to change the Text color of Menu item in Android?
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This works great for context menu items (not menu items from the menu button) which is what I've been looking for. Much simpler than the whole LayoutFactory mess.
– chubbsondubs
Jun 6 '12 at 16:40
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How do I increase the RAM and set up host-only networking in Vagrant?
... ]
You can obtain the properties that you want to change from the documents for VirtualBox command-line options:
http://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvm
The vagrant documentation has the section on how to change IP address:
Vagrant::Config.run do |config...
Git diff to show only lines that have been modified
...33\[3[12]m'
Explanation:
The git diff --color is needed to prevent git from disabling the color when it is piping.
The grep --color=never is to prevent grep removing the original color and highlighting the matched string.
We are matching for lines that start with red (\e[31m) or green (\e[32m) e...
Is R's apply family more than syntactic sugar?
...on.
set.seed(1) #for reproducability of the results
# The data - copied from Joris Meys answer
X <- rnorm(100000)
Y <- as.factor(sample(letters[1:5],100000,replace=T))
Z <- as.factor(sample(letters[1:10],100000,replace=T))
# an R way to generate tapply functionality that is fast and
# ...
How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
In the custom AuthenticationProvider from my spring project, I am trying read the list of authorities of the logged user, but I am facing the following error:
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Is it possible to perform a 'grep search' in all the branches of a Git project?
...known revision or path not in the working tree. Use '--' to separate paths from revisions
– jutky
Apr 6 '16 at 11:58
T...
How to configure a HTTP proxy for svn
I want to check code from the repository http://code.sixapart.com/svn/perlbal/ . I can only access the the repository url by setting a proxy. I guess if I want to get the code from the same URL by svn I need to configure a proxy, too. So does anyone of you could tell me how to configure a HTTP pro...
Is leaked memory freed up when the program exits?
... the OS keep track of all allocations? Any heap memory you allocate comes from the virtual memory space of the process - when the process terminates, that space is given back to the system wholesale, right? I don't see why the extra bookkeeping would be necessary, since the process making the allo...
HTML 5: Is it , , or ?
...E - it will also mean that any small error you make will prevent your page from being displayed in browsers that do support XHTML. So, most of what looks like XHTML on the web is actually being served, and interpreted, as HTML. See Serving XHTML as text/html Considered Harmful for some more informat...