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Volatile vs Static in Java
...nter different from zero!
To solve the problem, you have to implement a lock:
private static final Object counterLock = new Object();
private static volatile int counter = 0;
private void concurrentMethodRight() {
synchronized (counterLock) {
counter = counter + 5;
}
//do something
sy...
“rm -rf” equivalent for Windows?
...tory itself. Used to remove a directory tree.
/Q Quiet mode, do not ask if ok to remove a directory tree with /S
If you are using PowerShell you can use Remove-Item (which is aliased to del, erase, rd, ri, rm and rmdir) and takes a -Recurse argument that can be shorted to -r
rd -r "path"
...
How can I ignore everything under a folder in Mercurial
I am looking for an expression for the .hgignore file, to ignore all files beneath a specified folder.
6 Answers
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Provide an image for WhatsApp link sharing
... include an image in our website to display in WhatsApp when we share a link like this?
19 Answers
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How do I convert an array object to a string in PowerShell?
...# This Is a cat
"$a"
# This-Is-a-cat
$ofs = '-' # after this all casts work this way until $ofs changes!
"$a"
Using operator join
# This-Is-a-cat
$a -join '-'
# ThisIsacat
-join $a
Using conversion to [string]
# This Is a cat
[string]$a
# This-Is-a-cat
$ofs = '-'
[string]$a
...
Remove all the children DOM elements in div
...
Maurice PerryMaurice Perry
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What is sandboxing?
I have read the Wikipedia article , but I am not really sure what it means, and how similar it is to version control .
5...
Best way to check for nullable bool in a condition expression (if …)
... what was the most clean and understandable syntax for doing condition checks on nullable bools.
12 Answers
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Tree data structure in C#
I was looking for a tree or graph data structure in C# but I guess there isn't one provided. An Extensive Examination of Data Structures Using C# 2.0 explains a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern t...
Using the “final” modifier whenever applicable in Java [closed]
...
I think it all has to do with good coding style. Of course you can write good, robust programs without using a lot of final modifiers anywhere, but when you think about it...
Adding final to all things which should not change sim...