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How can I convert a long to int in Java?
...
Casting has different meanings for objects and for primitive types. (int) l doesn't try to treat a 64-bit integer as a 32-bit integer, it actually returns a different 32-bit integer with the same 32 lower order bits. With objects, you c...
Matching an empty input box using CSS
How do I apply a style to an empty input box? If the user types something in the input field, the style should no longer be applied. Is this possible in CSS? I tried this:
...
RabbitMQ / AMQP: single queue, multiple consumers for same message?
...his called in AMQP/RabbitMQ speak? How is it normally configured?
No, not if the consumers are on the same queue. From RabbitMQ's AMQP Concepts guide:
it is important to understand that, in AMQP 0-9-1, messages are load balanced between consumers.
This seems to imply that round-robin behavior...
How to convert String to long in Java?
...tic void main (String[] args) {
// String s = "fred"; // do this if you want an exception
String s = "100";
try {
long l = Long.parseLong(s);
System.out.println("long l = " + l);
} catch (NumberFormatException nfe) {
System.out.println("Number...
What's the difference between and
...h <T extends Foo> it will become Foo under erasure. (This can matter if you're trying to retain compatibility with a pre-generics API that used Object.)
Source: http://download.oracle.com/javase/tutorial/extra/generics/convert.html; it explains why the JDK's java.util.Collections class has a ...
Is there a WebSocket client implemented for Python? [closed]
... print "thread terminating..."
thread.start_new_thread(run, ())
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("ws://echo.websocket.org/",
on_message = on_message,
on_error = on_err...
How to merge two sorted arrays into a sorted array? [closed]
... O(n) algorithm but in literally single statement in a single while loop!
If two arrays are of approximately same size then constant for O(n) is same. However if arrays are really imbalanced then versions with System.arraycopy would win because internally it can do this with single x86 assembly ins...
How to rebase local branch with remote master
... following: Your branch and 'origin/b1' have diverged, # and have 3 and 2 different commits each, respectively. Seems like another git pull is needed. Is this correct or am I missing something here?
– Dror
Oct 29 '13 at 22:00
...
Make Bootstrap Popover Appear/Disappear on Hover instead of Click
... which is the better option, JS initialization or data-attributes ? Even if I use data-attributes, I still would have to call $("#popover").popover(); from my JavaScript.
– Bailey
Jan 3 '18 at 7:58
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How to check whether an object has certain method/property?
...into it.
Type.GetMethod(string name) will throw an AmbiguousMatchException if there is more than one method with that name, so we better handle that case
public static bool HasMethod(this object objectToCheck, string methodName)
{
try
{
var type = objectToCheck.GetType();
re...