How to convert byte array to String and STring to byte array?

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I have to convert byte array to String and vice versa?
May 14, 2018 in Java by Daisy
• 8,050 points
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2 answers to this question.

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The conversion between byte[] and String is to explicitly state the encoding you want to use. If you start with a byte[] and it does not in fact contain text data, there is no "proper conversion". Strings are for text, byte[] is for binary data, and the only really sensible thing to do is to avoid converting between them unless you absolutely have to.

byte[] bytes = {...}
String str = new String(bytes, "UTF-8"); // for UTF-8 encoding
answered May 14, 2018 by parth295
• 4,620 points
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The best possible way of conversion between byte[] and String is to explicitly state the encoding that you want to use. If you start with a byte[] and it does not in fact contain text data, there is no"proper conversion". Strings are for text, byte[] is for binary data, and the only really sensible thing to do is to avoid converting between them unless you absolutely have to.

If you really must use a String to hold binary data then the safest way is to use Base64encoding.

answered Aug 22 by Sirajul
• 25,180 points

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