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Why does this go into an infinite loop?
...alue formerly assigned to x. Really, injecting y makes things no different from the scenario above; we've simply got:
MutableInt x = new MutableInt(); // x is 0.
MutableInt y = new MutableInt(); // y is 0.
MutableInt temp = postIncrement(x); // Now x is 1, and temp is 0.
y = temp; ...
How to pass a URI to an intent?
...he Uri class implements Parcelable, so you can add and extract it directly from the Intent
// Add a Uri instance to an Intent
intent.putExtra("imageUri", uri);
// Get a Uri from an Intent
Uri uri = intent.getParcelableExtra("imageUri");
You can use the same method for any objects that implement ...
Java “Virtual Machine” vs. Python “Interpreter” parlance?
...know as the Java VM is not really Java specific. You could make a compiler from other languages that result in byte codes that can be run on the JVM. On the other hand, I don't think we would really think of "compiling" some other language other than Python into Python for interpretation by the Pyth...
Correct idiom for managing multiple chained resources in try-with-resources block?
...er(file))) {
bw.write(text);
}
For me, the best thing coming to Java from traditional C++ 15 years ago was that you could trust your program. Even if things are in the muck and going wrong, which they often do, I want the rest of the code to be on best behaviour and smelling of roses. Indeed, ...
HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK
...sing XAMPP for development. Recently I upgraded my installation of xampp from an old version to 1.7.3.
12 Answers
...
In C++, is it still bad practice to return a vector from a function?
...itions, with the exact same values), and the time difference can only come from the cost of allocations, deallocations, and better use of cache.
More specifically, let's use vecSize*numIter = 2^31 = 2147483648, because I have 16GB of RAM and this number ensures that no more than 8GB is allocated (s...
Loop backwards using indices in Python?
I am trying to loop from 100 to 0. How do I do this in Python?
15 Answers
15
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How to generate an openSSL key using a passphrase from the command line?
...ects the encrypted private key on standard input - you can instead read it from a file using -in <file>).
Example of creating a 3072-bit private and public key pair in files, with the private key pair encrypted with password foobar:
openssl genrsa -aes128 -passout pass:foobar -out privkey....
What is “loose coupling?” Please provide examples
...t understood the first basic tenet of loose coupling: abstraction. The key from here is to ensure that ABC and XYZ do not depend on any methods or variables of the classes that call them. That allows ABC and XYZ to be completely independent APIs. Or in other words, they are "decoupled" or "loosely c...
What are copy elision and return value optimization?
...if copying/moving the object has side-effects.
The following example taken from Wikipedia:
struct C {
C() {}
C(const C&) { std::cout << "A copy was made.\n"; }
};
C f() {
return C();
}
int main() {
std::cout << "Hello World!\n";
C obj = f();
}
Depending on the compiler...