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I have a MAC address represented as a byte[] in Java and want it as a hexadecimal string, as they are usually represented. How can I do this with as easy as possible?

The byte array has length 6.

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Try this:

String hexValue = String.format("%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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This works and the formating is perfect.

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