CODEWITHSUNDEEP
javawindowsunicodecmd
herr.kaste
herr.kaste

Reputation: 558

javac does not output unicode on command line

Context: Windows 10, cmd.exe, javac 9.0.1.

I have unicode encoded source code. If I run javac -encoding UTF-8 ... and I have an error, I just can't get it to display the source correctly.

enter image description here

As you can see in the picture, the cli can print unicode chars just fine.

Upvotes: 2

Views: 1015

Answers (2)

Andy Turner
Andy Turner

Reputation: 140318

It would appear that javac is not using your terminal's character encoding.

You can specify the character encoding for a JVM using the flag:

java -Dfile.encoding=UTF-8 ...

(Or whatever encoding)

Javac is just a thin wrapper around a Java program. You can pass arguments directly to its JVM using the -J flag. So:

javac -J-Dfile.encoding=UTF-8 ...

Upvotes: 5

iMysak
iMysak

Reputation: 2228

You can know your current(default) encoding by running 

System.getProperty("file.encoding")

and you can change default encoding with this property.

For Windows it is usually - cp1252,

Long Story, queue from IBM KB:

Internally, the Java virtual machine (JVM) always operates with data in Unicode. However, all data transferred into or out of the JVM is in a format matching the file.encoding property. Data read into the JVM is converted from file.encoding to Unicode and data sent out of the JVM is converted from Unicode to file.encoding.

Upvotes: 0

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