Please tell me if I can use BitSet this way ;

Question

Please set me right if I'm asking this question in the wrong forum. I am trying to write an object that contains values in a BitSet into a file using ObjectOutputStream. I loose the values upon reading the object back from the file using ObjectInputStream. What am I doing wrong? Am I way off even trying to do this?
thanks

Answer 1

Yes you can use it that way... maybe you could post your code as there may be another problem. The following code produces the correct result:
  public static void main( String[] args ) throws Exception {
    File f = new File( "c:/bitset" );
    ObjectOutputStream out = new ObjectOutputStream( new FileOutputStream( f ) );
    BitSet set = new BitSet(3);
    set.set(0);
    set.set(2);
    System.out.println( set );
    out.writeObject(set);
    out.close();
    ObjectInputStream in = new ObjectInputStream( new FileInputStream(f) );
    BitSet set2 = (BitSet)in.readObject();
    System.out.println( set2 );
    in.close();
  }