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What is the most frequent concurrency issue you've encountered in Java? [closed]
...olean. It solves all the problems of the non-volatile, while shielding you from the JMM issues.
– Kirk Wylie
Jan 20 '09 at 23:59
39
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Unnecessary curly braces in C++?
...t since you can introduce new variables anywhere, but perhaps the habit is from C, where you could not do this until C99. :)
Since C++ has destructors, it can also be handy to have resources (files, mutexes, whatever) automatically released as the scope exits, which can make things cleaner. This me...
Configuring user and password with Git Bash
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From Git Bash I prefer to run the command:
git config --global credential.helper wincred
At that point running a command like git pull and entering your credentials one time should have it stored for future use. Git has a ...
Android Fragment onClick button Method
...you should design for reuse and
avoid directly manipulating one fragment from another fragment.
A possible workaround would be to do something like this in your MainActivity:
Fragment someFragment;
...onCreate etc instantiating your fragments
public void myClickMethod(View v){
someFra...
Unit testing with Spring Security
...text() (thru a few wrapper methods of my own, so at least it's only called from one class).
– matt b
Dec 16 '08 at 19:56
2
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How does deriving work in Haskell?
...y become instances of some typeclasse s (like Show , Eq ) by deriving from them.
3 Answers
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Programmatically find the number of cores on a machine
Is there a way to determine how many cores a machine has from C/C++ in a platform-independent way? If no such thing exists, what about determining it per-platform (Windows/*nix/Mac)?
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How to add elements of a Java8 stream into an existing List
...on. This is the final result of the collect() operation.
A couple answers from Balder and assylias have suggested using Collectors.toCollection() and then passing a supplier that returns an existing list instead of a new list. This violates the requirement on the supplier, which is that it return a...
Why does PEP-8 specify a maximum line length of 79 characters? [closed]
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Also, it is preferred to not have code wrap. From a user experience perspective, it's unacceptable for most.
– Justin Bozonier
Sep 18 '08 at 7:00
8
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How to squash all git commits into one?
...ject
and emits the new commit object id on stdout. The log message is
read from the standard input, unless -m or -F options are given.
The expression HEAD^{tree} means the tree object corresponding to HEAD, namely the tip of your current branch. see Tree-Objects and Commit-Objects.
reset the curre...