class ValueHolderConversions 
      { 
      public static void main (String args[]) 
        {
        int i;
        double d;
        boolean b;
        Integer ii;
        Double dd;
        Boolean bb;

        i = 7;
        d = 3.1416;
        b = true;
        System.out.println
          (
          "Initial values:                       i=" + i
          + "  d=" + d
          + "  b=" + b
          );

        ii = new Integer (i);          // int     to Integer
        dd = new Double (d);           // double  to Double
        bb = new Boolean (b);          // boolean to Boolean
        System.out.println
          (
          "Converted to value holder objects:    ii=" + ii
          + "  dd=" + dd
          + "  bb=" + bb
          );

        i = 0;
        d = 0.0;
        b = false;
        System.out.println
          (
          "Reinitialized to bogus values:        i=" + i
          + "  d=" + d
          + "  b=" + b
          );

        i = ii.intValue ();            // Integer to int
        d = dd.doubleValue ();         // Double  to double
        b = bb.booleanValue ();        // Boolean to boolean
        System.out.println
          (
          "Converted from value holders vars:    i=" + i
          + "  d=" + d
          + "  b=" + b
          );
        }
      }