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Static method behavior in multi-threaded environment in java
There's a simple stupid question that bother me and make several arguments in my mind.
I want to throw out all the doubts about below questions.
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When should we use Observer and Observable?
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You have a concrete example of a Student and a MessageBoard. The Student registers by adding itself to the list of Observers that want to be notified when a new Message is posted to the MessageBoard. When a Message is added to the MessageBoard, it iterates over it...
Array or List in Java. Which is faster?
I have to keep thousands of strings in memory to be accessed serially in Java. Should I store them in an array or should I use some kind of List ?
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REST API Best practice: How to accept list of parameter values as input [closed]
We are launching a new REST API and I wanted some community input on best practices around how we should have input parameters formatted:
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Android - Spacing between CheckBox and text
...ere an easy way to add padding between the checkbox in a CheckBox control, and the associated text?
29 Answers
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What exactly is a reentrant function?
...rant?
No.
For example, let's have a C++ function that takes both a lock, and a callback as a parameter:
#include <mutex>
typedef void (*callback)();
std::mutex m;
void foo(callback f)
{
m.lock();
// use the resource protected by the mutex
if (f) {
f();
}
// u...
How to Store Historical Data
Some co-workers and I got into a debate on the best way to store historical data. Currently, for some systems, I use a separate table to store historical data, and I keep an original table for the current, active record. So, let's say I have table FOO. Under my system, all active records will go ...
How to return a string value from a Bash function
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There is no better way I know of. Bash knows only status codes (integers) and strings written to the stdout.
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Is there a way to get rid of accents and convert a whole string to regular letters?
Is there a better way for getting rid of accents and making those letters regular apart from using String.replaceAll() method and replacing letters one by one?
Example:
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How does this checkbox recaptcha work and how can I use it?
...signed up to the oneplusone website https://account.oneplus.net/sign-up , and noticed this checkbox recaptcha
5 Answers
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