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Why is Java's SimpleDateFormat not thread-safe? [duplicate]
...ed by operations on DateFormat / SimpleDateFormat.
For example parse(..) calls calendar.clear() initially and then calendar.add(..). If another thread invokes parse(..) before the completion of the first invocation, it will clear the calendar, but the other invocation will expect it to be populated...
How can I profile C++ code running on Linux?
... one of the suggested ones.
However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there is some code th...
How to perform better document version control on Excel files and SQL schema files
...
The answer I have written here can be applied in this case. A tool called xls2txt can provide human-readable output from .xls files. So in short, you should put this to your .gitattributes file:
*.xls diff=xls
And in the .git/config:
[diff "xls"]
binary = true
textconv = /path/to/...
Can you force Visual Studio to always run as an Administrator in Windows 8?
...Env\VSLauncher.exe file if you have multiple versions of Visual Studio installed. Also, the default paths to the devenv.exe files is: Visual Studio 2010 - C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe. Visual Studio 2012 - C:\Program Files (x86)\Microsoft Visual Studio 1...
Circle drawing with SVG's arc path
... albeit drawn in two pieces.
None of this would matter if they would just allow textpaths to accept shapes. But I think they are avoiding that solution since shape elements like circle don't technically have a "start" point.
jsfiddle demo: http://jsfiddle.net/crazytonyi/mNt2g/
Update:
If you are us...
Check if two linked lists merge. If so, where?
...
If
by "modification is not allowed" it was meant "you may change but in the end they should be restored", and
we could iterate the lists exactly twice
the following algorithm would be the solution.
First, the numbers. Assume the first list is of le...
How can I delete a file from a Git repository?
...Git repository. After that, I committed it, added a couple of directories called dir1 and dir2 , and committed them to the Git repository.
...
git - Server host key not cached
...be able to do your git push origin.
As an alternative, you could also manually add the key of origin to .ssh/known_hosts but this requires that you adhere to the format of the known_hosts file as described in the man page of sshd (Section AUTHORIZED_KEYS FILE FORMAT).
...
When is the finalize() method called in Java?
I need to know when the finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing?
...
How to concatenate text from multiple rows into a single text string in SQL server?
...an handle the concatenation of the rows very easily.
If there is a table called STUDENTS
SubjectID StudentName
---------- -------------
1 Mary
1 John
1 Sam
2 Alaina
2 Edward
Result I expected was:
SubjectID S...