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Can't create handler inside thread that has not called Looper.prepare()
What does the following exception mean; how can I fix it?
27 Answers
27
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How to revert initial git commit?
...you are on. You can't use git branch -D as this has a safety check against doing this. You can use update-ref to do this.
git update-ref -d HEAD
Do not use rm -rf .git or anything like this as this will completely wipe your entire repository including all other branches as well as the branch that...
How to reload apache configuration for a site without restarting apache
... AllowOverride for one of my websites in sites-enabled directory. How do I reload the new configuration without restarting apache? Is it possible?
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
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I guess this document might serve as a not so short introduction : n3055
The whole massacre began with the move semantics. Once we have expressions that can be moved and not copied, suddenly easy to grasp rules demanded distinction betwe...
Deleting lines from one file which are in another file
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grep -v -x -f f2 f1 should do the trick.
Explanation:
-v to select non-matching lines
-x to match whole lines only
-f f2 to get patterns from f2
One can instead use grep -F or fgrep to match fixed strings from f2 rather than patterns (in case you ...
Redirect to an external URL from controller action in Spring MVC
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You can do it with two ways.
First:
@RequestMapping(value = "/redirect", method = RequestMethod.GET)
public void method(HttpServletResponse httpServletResponse) {
httpServletResponse.setHeader("Location", projectUrl);
http...
Are nested HTML comments possible?
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Does this mean the inner comment is no longer a proper comment?
– S.Lott
Jan 14 '09 at 12:58
10
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Vagrant error : Failed to mount folders in Linux guest
...bguest
Output:
$ vagrant reload
==> default: Attempting graceful shutdown of VM...
...
==> default: Machine booted and ready!
GuestAdditions 4.3.12 running --- OK.
==> default: Checking for guest additions in VM...
==> default: Configuring and enabling network interfaces...
==> def...
CSS: Animation vs. Transition
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It looks like you've got a handle on how to do them, just not when to do them.
A transition is an animation, just one that is performed between two distinct states - i.e. a start state and an end state. Like a drawer menu, the start state could be open and the end sta...
best practice to generate random token for forgot password
I want to generate identifier for forgot password . I read i can do it by using timestamp with mt_rand(), but some people are saying that time stamp might not be unique every time. So i am bit of confused here. Can i do it with using time stamp with this ?
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