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Does a method's signature in Java include its return type?
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What do you mean by "In Java it doesn't but in JVM it does.". Could you elaborate on how in JVM?
– Tarun Maganti
Apr 12 '17 at 7:39
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byte[] to file in Java
...u had created the instance of "fos" inside the try. And this will automatically close the OutputStream
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Possible Loss of Fraction
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An integer divided by an integer will return your an integer. Cast either Value to a double or divide by 10.0.
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Creating hidden arguments with Python argparse
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I do it by adding an option to enable the hidden ones, and grab that by looking at sysv.args.
If you do this, you have to include the special arg you pick out of sys.argv directly in the parse list if you Assume the option is -s to...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
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Also worth noting the following from a document by the R Core Team summarizing changes in versions of R after v3.5.0 (here):
R has new serialization format (version 3) which supports custom serialization of
ALTREP framework objects... Serialized data in format 3 cannot be...
HTTP POST and GET using cURL in Linux [duplicate]
...sults:
For JSON:
If you use npm and nodejs, you can install json package by running this command:
npm install -g json
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | json
If you use pip and python, you can install pjson packa...
Golang: How to pad a number with zeros when printing?
....Printf("%06d", 12) // Prints to stdout '000012'
Setting the width works by putting an integer directly preceeding the format specifier ('verb'):
fmt.Printf("%d", 12) // Uses default width, prints '12'
fmt.Printf("%6d", 12) // Uses a width of 6 and left pads with space...
Round a double to 2 decimal places [duplicate]
..., with cleaner code too.
So, use this instead
(Adapted from this answer by Louis Wasserman and this one by Sean Owen.)
public static double round(double value, int places) {
if (places < 0) throw new IllegalArgumentException();
BigDecimal bd = BigDecimal.valueOf(value);
bd = bd.s...
Correct mime type for .mp4
...-Type for MPEG-4 video.
Generally, you can find official MIME definitions by searching for the file extension and "IETF" or "RFC". The RFC (Request for Comments) articles published by the IETF (Internet Engineering Taskforce) define many Internet standards, including MIME types.
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How do you use the Immediate Window in Visual Studio?
...lity to evaluate the return value of a method particularly if it is called by your client code but it is not part of a variable assignment. In Debug mode, as mentioned, you can interact with variables and execute expressions in memory which plays an important role in being able to do this.
For exam...