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Why does Android use Java? [closed]
...o Java was known in the industry
the speed difference is not an issue for most applications; if it was you should code in low-level language
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How can I convert an image into a Base64 string?
...You can use the Base64 Android class:
String encodedImage = Base64.encodeToString(byteArrayImage, Base64.DEFAULT);
You'll have to convert your image into a byte array though. Here's an example:
Bitmap bm = BitmapFactory.decodeFile("/path/to/image.jpg");
ByteArrayOutputStream baos = new ByteArray...
How to jump to a particular line in a huge text file?
...is read in memory! So I would definitely rule this answer out for the purpose of quickly accessing a given line in a file.
– MiniQuark
Mar 6 '09 at 21:15
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Python function attributes - uses and abuses [closed]
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I typically use function attributes as storage for annotations. Suppose I want to write, in the style of C# (indicating that a certain method should be part of the web service interface)
class Foo(WebService):
@webmethod
def bar(self, arg1, arg2):
...
then I can define
de...
How to trick an application into thinking its stdout is a terminal, not a pipe
I'm trying to do the opposite of " Detect if stdin is a terminal or pipe? ".
9 Answers
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Programmatically generate video or animated GIF in Python?
...ng x = [a, b, c] to *x which can be thought of as a, b, c (without the enclosing brackets). In function calls these are synonymous: f(*x) == f(a, b, c). In tuple unpacking it's particularly useful in cases where you want to split an iterable into a head (first element) and a tail (the rest), which i...
When you exit a C application, is the malloc-ed memory automatically freed?
...of that experience, I can say that it does NOT free memory when programs close.
– San Jacinto
Feb 6 '10 at 15:44
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How do I view the type of a scala expression in IntelliJ
...2 '11 at 10:26
Sergey PassichenkoSergey Passichenko
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Java system properties and environment variables
... they are added to.
Also as Bohemian stated, env variables are set in the OS (however they 'can' be set through Java) and system properties are passed as command line options or set via setProperty().
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How to make an Android device vibrate?
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Try:
import android.os.Vibrator;
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Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
// Vibrate for 500 milliseconds
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(500, Vi...