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SBT stop run without exiting
...tion (in build.sbt):
connectInput in run := true
Finally, in the main thread of the application, I wait for end-of-file on stdin and then shutdown the JVM:
while (System.in.read() != -1) {}
logger.warn("Received end-of-file on stdin. Exiting")
// optional shutdown code here
System.exit(0)
Of c...
Static Classes In Java
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@Geek: Did you read my answer? Read the second sentence carefully. Why would you not want to be able to have instance methods of static classes? You can create instances of them, after all.
– Jon Skeet
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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
...VERY careful not to bypass stdio's buffer. If there is buffer data (either read or unflushed write), reads/writes from the file descriptor might give you unexpected results.
To answer one of the side questions, to convert a file descriptor to a FILE pointer, use fdopen(3)
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Python, Unicode, and the Windows console
...gt; 2
Б
Б
There's some more information on that page, well worth a read.
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Convert object to JSON in Android
...oved JSON Parser.
http://developer.android.com/reference/android/util/JsonReader.html
Reads a JSON (RFC 4627) encoded value as a stream of tokens. This
stream includes both literal values (strings, numbers, booleans, and
nulls) as well as the begin and end delimiters of objects and arrays....
How to get a file or blob from an object URL?
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Please note that some browsers (read old IE...), if you need to handle those see post stackoverflow.com/questions/17657184/…
– mraxus
Apr 28 '16 at 5:27
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What are metaclasses in Python?
...the object class Foo. If it doesn't, it will use
type to create the class.
Read that several times.
When you do:
class Foo(Bar):
pass
Python does the following:
Is there a __metaclass__ attribute in Foo?
If yes, create in-memory a class object (I said a class object, stay with me here), with th...
How to get the PATH environment-variable separator in Python?
...
If, like me, you didn't read the body of this question and just went by the title, you'll think this is the character that separates elements of a filesystem path (forward slash on Linux and MacOSX, backslash on Windows). It's not, it the character...
Create a File object in memory from a string in Java
...tion. I should add that the String data don't exist in a file (so I cannot read my data from a file).
5 Answers
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Is a Java string really immutable?
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As this topic seems overwhelmingly popular, here's some suggested further reading: Heinz Kabutz's Reflection Madness talk from JavaZone 2009, which covers a lot of the issues in the OP, along with other reflection... well... madness.
It covers why this is sometimes useful. And why, most of the ti...