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Creating a “logical exclusive or” operator in Java
...Here's an example:
public static void main(String[] args) {
boolean[] all = { false, true };
for (boolean a : all) {
for (boolean b: all) {
boolean c = a ^ b;
System.out.println(a + " ^ " + b + " = " + c);
}
}
}
Output:
false ^ false = false
f...
When to make a type non-movable in C++11?
...
Herb's answer (before it was edited) actually gave a good example of a type which shouldn't be movable: std::mutex.
The OS's native mutex type (e.g. pthread_mutex_t on POSIX platforms) might not be "location invariant" meaning the object's address is part of its va...
PHP Replace last occurrence of a String in a String?
...he first occurrence of a substring in a string - edit: wow. Php geniuses really made a function called strpos and strrpos ? Thanks....
– BarryBones41
Oct 5 '15 at 21:22
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Run a PostgreSQL .sql file using command line arguments
...n use the following by navigating to the bin folder of your PostgreSQL install:
12 Answers
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How to execute a file within the python interpreter?
...ath/to/script.py").read(), globals())
This will execute a script and put all it's global variables in the interpreter's global scope (the normal behavior in most scripting environments).
Python 3 exec Documentation
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This, along with all the other conditional comments solutions, will not detect IE 10 / IE 11
– Lloyd Banks
Oct 5 '13 at 2:23
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How to have the formatter wrap code with IntelliJ?
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these guys keep on renaming setting keys all the time
– ACV
Jul 1 '19 at 11:05
This ...
Immutable vs Unmodifiable collection
... collection of StringBuilder doesn't somehow "freeze" those objects.
Basically, the difference is about whether other code may be able to change the collection behind your back.
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Is using Random and OrderBy a good shuffle algorithm?
...asy to implement an O(n) shuffle. The code in the question "works" by basically giving a random (hopefully unique!) number to each element, then ordering the elements according to that number.
I prefer Durstenfield's variant of the Fisher-Yates shuffle which swaps elements.
Implementing a simple S...
Why aren't my breakpoints working?
...
First of all, I agree 100% with the earlier folks that said turn OFF Load Symbols Lazily.
I have two more things to add.
(My first suggestion sounds obvious, but the first time someone suggested it to me, my reaction went along thes...