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Random “Element is no longer attached to the DOM” StaleElementReferenceException
...tReferenceException e) {
System.out.println("Attempting to recover from StaleElementReferenceException ...");
return getStaleElemById(id);
}
}
Yes, it just keeps polling the element until it's no longer considered stale (fresh?). Doesn't really get to the root of the problem, b...
Unloading classes in java?
...loader so that a desktop application can dynamically start loading classes from an AppServer I need to talk to. We did this since the amount of jars that are required to do this are ridiculous (if we wanted to ship them). We also have version problems if we don't load the classes dynamically at run ...
A variable modified inside a while loop is not remembered
...
what if the source was from tail -f instead of fixed text?
– mt eee
Nov 9 '18 at 7:57
2
...
Random float number generation
...u'll need to employ a more advanced method.
This will generate a number from 0.0 to 1.0, inclusive.
float r = static_cast <float> (rand()) / static_cast <float> (RAND_MAX);
This will generate a number from 0.0 to some arbitrary float, X:
float r2 = static_cast <float> (rand(...
Copy a stream to avoid “stream has already been operated upon or closed”
...at I can deal with it twice. I can collect as a list and get new streams from that;
10 Answers
...
How do you keep parents of floated elements from collapsing? [duplicate]
... is floated, its parent no longer contains it because the float is removed from the flow. You can use 2 methods to fix it:
{ clear: both; }
clearfix
Once you understand what is happening, use the method below to “clearfix” it.
.clearfix:after {
content: ".";
display: block;
clea...
Java executors: how to be notified, without blocking, when a task completes?
... @Zelphir It was a Callback interface that you declare; not from a library. Nowadays I'd probably just use Runnable, Consumer, or BiConsumer, depending on what I need to pass back from the task to the listener.
– erickson
Jan 29 '16 at 15:52
...
nano error: Error opening terminal: xterm-256color
...
Worked for me when ran on the remove system. Connection from was OS X -> Ubuntu
– Ryan Griffith
Jul 4 '16 at 14:09
...
Class vs. static method in JavaScript
... class, it's a function, which is an object. You can instantiate an object from that function using the new keyword which will allow you to create something similar to a class in a standard OOP language.
I'd suggest ignoring __proto__ most of the time because it has poor cross browser support, and ...
How do I efficiently iterate over each entry in a Java Map?
...p.entrySet()) {
i += pair.getKey() + pair.getValue();
}
Using forEach from Java 8
final long[] i = {0};
map.forEach((k, v) -> i[0] += k + v);
Using keySet and foreach
long i = 0;
for (Integer key : map.keySet()) {
i += key + map.get(key);
}
Using keySet and iterator
long i = 0;
Iter...