import java.nio.charset.StandardCharsets;
import javax.xml.bind.DatatypeConverter;
class Ideone
{
public static void main
(String[] args
) {
final String string
= "Hello, world!"; final String hex
= DatatypeConverter.
printHexBinary(string.
getBytes(StandardCharsets.
UTF_8)); System.
out.
println(new String(DatatypeConverter.
parseHexBinary(hex
), StandardCharsets.
UTF_8)); }
}
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