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Finding Number of Cores in Java
...
int cores = Runtime.getRuntime().availableProcessors();
If cores is less than one, either your processor is about to die, or your JVM has a serious bug in it, or the universe is about to blow up.
...
How to click or tap on a TextView text
...hat worked for what I'm doing. All of this is after my onCreate:
boilingpointK = (TextView) findViewById(R.id.boilingpointK);
boilingpointK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if ("Boiling Point K".equals(boilingpointK.getText().t...
'typeid' versus 'typeof' in C++
...eof. typeof works on types too while decltype doesn't. For example, typeof(int) is int while decltype(int) is an error.
– Shahbaz
Aug 10 '17 at 19:23
1
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How to remove an item for a OR'd enum?
...:
public static Colour UnSet(this Colour states, Colour state)
{
if ((int)states == 0)
return states;
if (states == state)
return Colour.None;
return states & ~state;
}
And also the equivilent IsSet method that handles the combined values (albeit in a bit of a ha...
#pragma mark in Swift?
...
For those who are interested in using extensions vs pragma marks (as mentioned in the first comment), here is how to implement it from a Swift Engineer:
import UIKit
class SwiftTableViewController: UITableViewController {
init(coder aD...
How do I count unique values inside a list
...s are thrown away, and list.count() is O(n) anyway. You don't even need to convert aa to list at all. See Vidul's answer instead.
– wjandrea
Sep 23 at 15:38
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What is the difference between statically typed and dynamically typed languages?
...g anyway, but you may find yourself searching for a bug that is due to the interpreter misinterpreting the type of a variable. Luckily, scripts tend to be small so bugs have not so many places to hide.
Most dynamically typed languages do allow you to provide type information, but do not require it....
Android: Clear Activity Stack
...at's in there and create new root, correct set of flags is the following:
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
From the doc:
public static final int FLAG_ACTIVITY_CLEAR_TASK
Added in API level 11
If set in an Intent passed to
Context.star...
Multiple queries executed in java in single statement
...le to execute something like this using JDBC.
"SELECT FROM * TABLE;INSERT INTO TABLE;"
Yes it is possible. There are two ways, as far as I know. They are
By setting database connection property to allow multiple queries,
separated by a semi-colon by default.
By calling a stored procedure that r...
What's the difference between “groups” and “captures” in .NET regular expressions?
...say about it (pages 437+):
Depending on your view, it either adds
an interesting new dimension to the
match results, or adds confusion and
bloat.
And further on:
The main difference between a Group
object and a Capture object is that
each Group object contains a
collection of C...