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Custom thread pool in Java 8 parallel stream
...lso means if you have nested parallel streams or multiple parallel streams started concurrently, they will all share the same pool. Advantage: you will never use more than the default (number of available processors). Disadvantage: you may not get "all the processors" assigned to each parallel str...
How can I determine whether a 2D Point is within a Polygon?
... above, remember? Just pick a point outside the bounding box and use it as starting point for your ray. E.g. the point (Xmin - e/p.y) is outside the polygon for sure.
But what is e? Well, e (actually epsilon) gives the bounding box some padding. As I said, ray tracing fails if we start too close t...
Fast permutation -> number -> permutation mapping algorithms
...d k the index of the digit. (I will always count digits from the right and starting at index 0 for the rightmost digit. Likewise when I talk about the 'first' digit I mean the rightmost.)
The reason why the weights for digits follow this pattern is that the highest number that can be represented by...
HTML encoding issues - “” character showing up instead of “ ”
I've got a legacy app just starting to misbehave, for whatever reason I'm not sure. It generates a bunch of HTML that gets turned into PDF reports by ActivePDF.
...
download file using an ajax request
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It is possible. You can have the download started from inside an ajax function, for example, just after the .csv file is created.
I have an ajax function that exports a database of contacts to a .csv file, and just after it finishes, it automatically starts the .csv...
Why extend the Android Application class?
...Access to variables across the Application,
You can use the Application to start certain things like analytics
etc. since the application class is started before Activitys or
Servicess are being run,
There is an overridden method called onConfigurationChanged() that is
triggered when the application...
Difference between app.all('*') and app.use('/')
...js
app.all(path, [callback...], callback)
app.use only sees whether url starts with the specified path
app.use( "/product" , mymiddleware);
// will match /product
// will match /product/cool
// will match /product/foo
app.all will match complete path
app.all( "/product" , handler);
// will ma...
Cron job every three days
...d 31 days.) The date('j') % 3 has a similar problem in that the pattern restarts every year, and years don't have a number of days divisible by 3.
– cjm
Apr 19 '15 at 22:28
8
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Git commit with no commit message
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@amn, I also just started wondering about all those tens of thousands of well-written commit messages that I have written that will never ever be read by anyone. For me now the value of this habit is that it forces me to look through the chang...
How do I speed up the gwt compiler?
We're starting to make heavier use of GWT in our projects, and the performance of the GWT compiler is becoming increasingly annoying.
...