public static BitField getInstance(int mask) {BitField f = instances.get(Integer.valueOf(mask));if (f == null) {f = new BitField(mask);instances.put(Integer.valueOf(mask), f);}return f;}

public static BitField getInstance ( int mask ) { BitField f = instances . get ( Integer . valueOf ( mask ) ) ; if ( f == null ) { f = new BitField ( mask ) ; instances . put ( Integer . valueOf ( mask ) , f ) ; } return f ; }
public static BitField GetInstance(int mask){BitField f = (BitField)instances[mask];if (f == null){f = new BitField(mask);instances[mask] = f;}return f;}
