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In java, we can use the method of String : byte[] getBytes(Charset charset) . This method Encodes a String into a sequence of bytes using the given charset, storing the result into a new byte array.

But how to do this in GO? Is there any similar way in Go can do this?

Please let me know it.

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The standard Go library only supports Unicode (UTF-8, UTF-16, UTF-32) and ASCII encoding. ASCII is a subset of UTF-8.

The go-charset package (found from here) supports conversion to and from UTF-8 and it also links to the GNU iconv library.

See also field CharsetReader in encoding/xml.Decoder.

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I don't think Go natively supports UTF-16 or 32 only UTF-8 and ASCII. Any other charset will have to be treated as a slice of bytes and use a package such as go-charset to be properly handled.
The type rune is UTF-32. UTF-16 is package unicode/utf16.
The type rune is a unicode code point it's just a int32 number this means that a slice of []rune is essentially an slice of utf-32 characters. and you it supports native conversion between the two so I suppose you can make the case that utf-8 and utf32 are supported natively.
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I believe here is an answer: https://stackoverflow.com/a/6933412/1315563

There is no way to do it without writing the conversion yourself or using a third-party package. You could try using this: http://code.google.com/p/go-charset

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