convert string to byte[] and convert byte[] to string

Question

the following code is the code to convert string into byte[]

byte[] feedback;
feedback = "Your answer is correct and submit on time".getBytes();

but i found that the byte[] is containing a series of numbers, how do i convert back to string "Your answer is correct and submit on time"?

thanks

Your requirement is built-in in String class!!! String has several constructor and methods for this goals. You could find your answer by reading String JavaDocs. — Sam
– Sam, Commented May 7, 2012 at 9:54

Michael Borgwardt · Accepted Answer · 2012-05-07 09:52:01Z

5

String s = new String(feedback)

But note that both getBytes() and new String() have versions that take an encoding, and you really, really, REALLY should use that, after reading The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)

answered May 7, 2012 at 9:52

Michael Borgwardt

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npinti · Accepted Answer · 2012-05-07 09:50:21Z

1

You should be able to use this constructor to get your string back: String newString = new String(feedback);

answered May 7, 2012 at 9:50

npinti

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MrJames · Accepted Answer · 2012-05-07 09:50:27Z

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String s = new String(feedback);

You should try first to search on the docs... http://docs.oracle.com/javase/7/docs/api/java/lang/String.html

answered May 7, 2012 at 9:50

MrJames

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Radu Murzea · Accepted Answer · 2012-05-07 09:50:59Z

0

byte[] feedback = "Your answer is correct and submit on time".getBytes ();

String backtoString = new String (feedback);

answered May 7, 2012 at 9:50

Radu Murzea

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Skyr · Accepted Answer · 2012-05-07 10:44:07Z

0

You can convert your byte array back to a string using the String constructor:

String yourString = new String(feedback);

Bear in mind that both conversions are based on the default character endoding (UTF8, ...). Other methods allow setting a specific encoding; also, there is a toCharArray() method giving you an encoding-independent char[] instead of byte[].

answered May 7, 2012 at 10:44

Skyr

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LyB8899 · Accepted Answer · 2012-05-07 11:02:35Z

0

Try this

String u = new String(feedback, "UTF8");

answered May 7, 2012 at 11:02

LyB8899

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