[代码] [Java]代码 import java.io.UnsupportedEncodingException;import java.nio.charset.Charset;public class Test {	public static void main(String args[])	{		System.out.println("default charse ; t : " Charset.defaultCharset());		String str = "abc你好";//string with UTF-8 charset		byte[] bytes = str.getBytes(Charset.forName("UTF-8"));//convert to byte array with UTF-8 encode		for (byte b : bytes)		{			System.out.print(b   " ");		}		System.out.println();		try		{			String str1 = new String(bytes, "UTF-8");//to UTF-8 string			String str2 = new String(bytes, "GB18030");//to ISO-8859-1 string			String str3 = new String(bytes, "GBK");//to GBK string			System.out.println(str1);//abc���			System.out.println(str2);//abc??????			System.out.println(str3);//abc你好			System.out.println();			byte[] bytes2 = str2.getBytes(Charset.forName("GB18030"));			for (byte b : bytes2)			{				System.out.print(b   " ");			}			System.out.println();			String str22 = new String(bytes2, "UTF-8");			System.out.println(str22);//abc���						System.out.println();			byte[] bytes3 = str3.getBytes(Charset.forName("GBK"));			for (byte b : bytes3)			{				System.out.print(b   " ");			}			System.out.println();			String str33 = new String(bytes3, "UTF-8");			System.out.println(str33);//abc���		} catch (UnsupportedEncodingException e)		{			e.printStackTrace();		}	}} ;