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Hash String via SHA-256 in Java
...e this to UTF-16 if needed
md.update(text.getBytes(StandardCharsets.UTF_8));
byte[] digest = md.digest();
String hex = String.format("%064x", new BigInteger(1, digest));
System.out.println(hex);
}
}
In the snippet above, digest contains the hashed string and hex contains a hexad...
Swift: Pass array by reference?
...For Swift versions 3-4 (XCode 8-9), use
var arr = [1, 2, 3]
func addItem(_ localArr: inout [Int]) {
localArr.append(4)
}
addItem(&arr)
print(arr)
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...
rmagick gem install “Can't find Magick-config”
... PATH variable with additional path to ImageMagick lib.
PATH="/usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16:$PATH"
then run gem install rmagick
source of solution
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Draw multi-line text to Canvas
...ut = new StaticLayout(mText, mTextPaint, canvas.getWidth(), Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
canvas.save();
// calculate x and y position where your text will be placed
textX = ...
textY = ...
canvas.translate(textX, textY);
mTextLayout.draw(canvas);
canvas.restore();
...
How can I launch Safari from an iPhone app?
...wers.
import UIKit
class InterAppCommunication {
static func openURI(_ URI: String) {
UIApplication.shared.open(URL(string: URI)!, options: [:], completionHandler: { (succ: Bool) in print("Complete! Success? \(succ)") })
}
}
...
Applying .gitignore to committed files
...wers were messing with files needlessly.
– kayleeFrye_onDeck
Jun 6 '17 at 22:34
1
This is the exa...
How SID is different from Service name in Oracle tnsnames.ora
...e as SID
and you can also give it any other
name you want.
SERVICE_NAME is the new feature from
oracle 8i onwards in which database
can register itself with listener. If
database is registered with listener
in this way then you can use
SERVICE_NAME parameter in tnsnames.ora
othe...
How to sort an array of integers correctly
... answered Nov 17 '18 at 21:01
dy_dy_
4,12744 gold badges2020 silver badges2828 bronze badges
...
Trim trailing spaces in Xcode
...ing script:
#!/usr/bin/perl
while (<>) {
s/\s+$//;
print "$_\n";
}
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How to save a Python interactive session?
...for your use-case there is the %save magic command, you just input %save my_useful_session 10-20 23 to save input lines 10 to 20 and 23 to my_useful_session.py (to help with this, every line is prefixed by its number).
Furthermore, the documentation states:
This function uses the same syntax as...