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How to convert a byte array to a hex string in Java?
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@maybeWeCouldStealAVan: JDK 7 is now open source. We should submit a patch to improve performance for printHexBinary?
– kevinarpe
Jul 10 '13 at 17:05
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...dated with warnings about this behavior. So, oddball behavior remains. But now it's documented.
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How do I generate random integers within a specific range in Java?
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This would return a value in the range [0,5), where 5 is not included.
Now you need to shift this range up to the range that you are targeting. You do this by adding the Min value.
Min + (Math.random() * (Max - Min))
You now will get a value in the range [Min,Max). Following our example, that...
Java Enum Methods - return opposite direction enum
...ANTs.
So all you need is EnumType.ENUM_CONSTANT.methodName(arguments).
Now lets go back to problem from question. One of solutions could be
public enum Direction {
NORTH, SOUTH, EAST, WEST;
private Direction opposite;
static {
NORTH.opposite = SOUTH;
SOUTH.opposi...
Cached, PHP generated Thumbnails load slowly
... currently working on reducing the open connections (went from 40 orso to now 30 orso... the final push is the most difficult as some of the images are repweating backgrounds and cannot go into a sprite (or???)
– Sam
Mar 10 '11 at 8:48
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static function in C
...e this:
#include "header.h"
int main(void) {
FunctionInHeader();
}
Now consider three cases:
Case 1:
Our header file ("header.h") looks like this:
#include <stdio.h>
static void FunctionInHeader();
void FunctionInHeader() {
printf("Calling function inside header\n");
}
Then ...
How do you run your own code alongside Tkinter's event loop?
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Wow, I have spent hours now debugging why my gui kept freezing. I feel stupid, thanks a million!
– Jason Waltz
Aug 22 at 5:41
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How to validate an email address in PHP
...xists. The only way to find that out is by sending a confirmation mail.
Now that you have your easy answer feel free to read on about email address validation if you care to learn or otherwise just use the fast answer and move on. No hard feelings.
Trying to validate an email address using a re...
How do you calculate the average of a set of circular data? [closed]
...ent, and also work well in the zero case, so kudos to him.
The subject is now explored in more detail on Wikipedia, and with other uses, like fractional parts.
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How to programmatically take a screenshot on Android?
...e code (running in an Activity):
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.g...