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Different results with Java's digest versus external utilities
... hash values of the Windows Calculator file. I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or websites? Everything external matches with each o...
What is the difference between Caching and Memoization?
...uld like to know what the actual difference between caching and memoization is.
As I see it, both involve avoiding repeated function calls to get data by storing it .
...
Yes/No message box using QMessageBox
...
You would use QMessageBox::question for that.
Example in a hypothetical widget's slot:
#include <QApplication>
#include <QMessageBox>
#include <QDebug>
// ...
void MyWidget::someSlot() {
QMessageBox::StandardButton reply;
reply = Q...
How do you merge two Git repositories?
Consider the following scenario:
23 Answers
23
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How to add hyperlink in JLabel?
...n't have to worry about accessibility and can just fire events using an ActionListener.
public static void main(String[] args) throws URISyntaxException {
final URI uri = new URI("http://java.sun.com");
class OpenUrlAction implements ActionListener {
@Override public void actionPerf...
mongodb count num of distinct values per field/key
...can check the length of the array for a count.
There is a shell db.collection.distinct() helper as well:
> db.countries.distinct('country');
[ "Spain", "England", "France", "Australia" ]
> db.countries.distinct('country').length
4
...
Real mouse position in canvas [duplicate]
...ut the only way that it seems to work well is if the canvas is in the position 0,0 (upper left corner) if I change the canvas position, for some reason it doesn't draw like it should. Here is my code.
...
How can I do something like a FlowLayout in Android?
...arn how to do it yourself. During the talk I wrote a FlowLayout implementation live on stage to show how simple it is to write custom layouts.
The implementation is hosted here.
share
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improve thi...
Why does this code using random strings print “hello world”?
...n this case -229985452 or -147909649), it follows the random number generation algorithm beginning with that seed value.
Every Random constructed with the same seed will generate the same pattern of numbers every time.
shar...
Select elements by attribute in CSS
...tyles */
}
There are a variety of attribute selectors you can use for various scenarios which are all covered in the document I link to. Note that, despite custom data attributes being a "new HTML5 feature",
browsers typically don't have any problems supporting non-standard attributes, so you sh...