Java Charset.isRegistered()

public final boolean isRegistered()

import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.Map;
/*from   w w  w.j  a v  a  2  s  .  c  o  m*/
public class Main {

  public static void main(String[] args) {
    Map<String, Charset> charsets = Charset.availableCharsets();
    Iterator<Charset> iterator = charsets.values().iterator();
    while (iterator.hasNext()) {
      Charset cs = (Charset) iterator.next();
      System.out.println(cs.displayName());
      if (cs.isRegistered()) {
        System.out.print(" (registered): ");
      } else {
        System.out.print(" (unregistered): ");
      }
    }
  }
}