public final Set<String> aliases(){
  if (aliasSet != null)   return aliasSet;
  int n=aliases.length;
  HashSet<String> hs=new HashSet<String>(n);
  for (int i=0; i < n; i++)   hs.add(aliases[i]);
  aliasSet=Collections.unmodifiableSet(hs);
  return aliasSet;
}

public final Set < String > aliases ( ) { if ( aliasSet != null ) return aliasSet ; int n = aliases . length ; HashSet < String > hs = new HashSet < String > ( n ) ; for ( int i = 0 ; i < n ; i ++ ) hs . add ( aliases [ i ] ) ; aliasSet = Collections . unmodifiableSet ( hs ) ; return aliasSet ; }
returns a set containing this charset ' s aliases .
