Java Charset get CharsetDecoder

import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;

public class Main {
  public static void main(String[] argv) throws Exception {
   //from  ww  w .  j  a  v  a 2 s.c  o m
    CharsetDecoder de= Charset.defaultCharset().newDecoder();
    System.out.println(de.replacement());
  }
}