计算中英文合并的字符串的长度

import java.io.*;

public class StringTest
{
    public static void main(String[] args)
    {
        String aString = "这是一个测试串，This is a test string.";
        String anotherString = null;
        try
        {
            anotherString = new String(aString.getBytes("GBK"), "ISO8859_1");
        }
        catch (UnsupportedEncodingException ex)
        {
        }
        System.out.println(aString.length() + "," + anotherString.length());
    }
}