java程序实现utf 8转本地化编码

package script;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
public class Change {
 public static void main(String[] args) throws Exception {
  Change c = new Change();
  c.utf8toLocaleCode();
 }
 public void utf8toLocaleCode() throws Exception {
  BufferedReader br = new BufferedReader(new FileReader("D:/123.txt"));
  BufferedWriter bw = new BufferedWriter(new FileWriter("D:/456.txt"));
  String text = br.readLine();
  while (text != null) {
   String content = new String(text.getBytes("UTF-8"), "GBK");
   System.out.println(content);
   bw.write(content);
   bw.newLine();
   text = br.readLine();
  }
  br.close();
  bw.close();
 }
}