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How do I convert a byte array to a string? Is this the correct syntax?

byteArray.toString();
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  • Have you tried it? Was there a problem? Commented Nov 25, 2010 at 9:29
  • 1
    what does the compiler say? "Computer Says No!"??? Commented Nov 25, 2010 at 9:29
  • @ Mitch Wheat i am getting different anwsers for bytearray.toString() and public void convertByteArrayToString() { byte[] byteArray = new byte[] {87, 79, 87, 46, 46, 46}; String value = new String(byteArray); System.out.println(value); } Commented Nov 25, 2010 at 10:32

2 Answers 2

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The Best way to convert bytearray to String is

public void convertByteArrayToString(Charset encoding) {

        byte[] byteArray = new byte[] {87, 79, 87, 46, 46, 46};

        String value = new String(byteArray, encoding);

        System.out.println(value);
    }
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4 Comments

String(byte[]) uses the system's default encoding. You should use String(byte[], String) to specify an encoding, which depends on what your encoding your bytes are in.
@Nick i am getting an error String value = new String(byteArray, "text/xml; charset=utf-8"); as unsupported encoding exception
@Nick also tried String value = new String(byteArray, "charset=utf-8");
It should be a string such as UTF-8. See download.oracle.com/javase/1.4.2/docs/api/java/nio/charset/… for some standard charsets.
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You need to supply an encoding, otherwise you get the system default encoding, essentially a random value.

String value = new String(byteArray, encoding);

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