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How does Git handle symbolic links?
...n the tree object that represents its containing directory.
When you checkout a tree containing the link, it restores the object as a symlink regardless of whether the target file system object exists or not.
If you delete the file that the symlink references it doesn't affect the Git-controlled s...
Parse v. TryParse
...try/catch internally - the whole point of it is that it is implemented without exceptions so that it is fast. In fact the way it is most likely implemented is that internally the Parse method will call TryParse and then throw an exception if it returns false.
In a nutshell, use Parse if you are sur...
How can I count the number of matches for a regex?
...t = 0;
while (matcher.find())
count++;
System.out.println(count); // prints 3
}
}
Handling overlapping matches
When counting matches of aa in aaaa the above snippet will give you 2.
aaaa
aa
aa
To get 3 matches, i.e. this behavior:
aaaa
aa
aa
aa
You h...
The requested operation cannot be performed on a file with a user-mapped section open
... that was been compiled in the Debug folder... Strange, isn't it?
I found out using a tool called Unlocker.
Had to delete with Unlocker, even when it was saying that there was no lock over the file, and I couldn't delete the folder until I didn't delete that single file...
After that it compiled....
Is Integer Immutable
...at the reference rather than the value has changed)
Integer a = 3;
System.out.println("before a +=3; a="+a+" id="+Integer.toHexString(System.identityHashCode(a)));
a += 3;
System.out.println("after a +=3; a="+a+" id="+Integer.toHexString(System.identityHashCode(a)));
prints
before a +=3; a=3 id=...
Is there a Null OutputStream in Java?
I need to specify an OutputStream for an API I'm using, but I don't actually have a need for the output. Does Java have an OutputStream equivalent to > /dev/null ?
...
IIS: Idle Timeout vs Recycle
...
Idle Timeout is if no action has been asked from your web app, it the process will drop and release everything from memory
Recycle is a forced action on the application where your processed is closed and started again, for memory lea...
How to pass argument to Makefile from command line?
... of how Make works. But here it is:
action:
@echo action $(filter-out $@,$(MAKECMDGOALS))
%: # thanks to chakrit
@: # thanks to William Pursell
EDIT:
To explain the first command,
$(MAKECMDGOALS) is the list of "targets" spelled out on the command line, e.g. "action value1 v...
How to push to a non-bare Git repository?
...git add .
git commit -m 1
git push origin master:master
cd ../server
ls
Output:
a
b
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Show hide fragment in android
... .setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out)
.show(somefrag)
.commit();
OR if you are using android.support.v4.app.Fragment
FragmentManager fm = getSupportFragmentManager();
fm.beginTransaction()
.setCustomAnimations(android.R.a...