Convert java.io.StringWriter to byte[] array

Question

How to convert java.io.StringWriter to byte[] array? Using OpenCSV i get StringWriter sw object and this sw object I want to convert into byte[] array.

Peter Lawrey · Accepted Answer · 2012-11-19 11:53:27Z

33

You can do

byte[] bytes = stringWriter.toString().getBytes("UTF-8");

answered Nov 19, 2012 at 11:53

Peter Lawrey

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Jon Skeet · Accepted Answer · 2012-11-19 11:53:31Z

17

You need to decide which encoding you want to use:

Call StringWriter.toString() to get the contents out as a string
Call String.getBytes(Charset) or String.getBytes(String) to convert the string to a byte array

Don't use the parameterless String.getBytes() call - that will use the platform default encoding. Even if you want to use that, I'd strongly encourage you to specify it explicitly, to make it clear to anyone who reads it.

answered Nov 19, 2012 at 11:53

Jon Skeet

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