class OSetIntDriver {
    public static void main(String[] args) {
        int r;

        OSet o = new OSetArray();
        System.out.println("Set size = " + o.size());

        o.insert(new IntElement(10));
        o.insert(new IntElement(11));
        o.insert(new IntElement(5));
        o.insert(new IntElement(20));
        o.insert(new IntElement(8));

        System.out.println("Set size = " + o.size());

        OSetManipulator.print( o );

        System.out.println("\nDeleting element 1" +
                           " by rank");
        o.delete(1);

        OSetManipulator.print( o );
        OSetManipulator.saveToFile( o, "IntFile" );
    }
}