How to convert between high and low precision spatial references

static void lowHighConversion_Example(IFeatureClass pre92FeatureClass)throws
    Exception{
    IGeoDataset pre92GeoDataset = (IGeoDataset)pre92FeatureClass;

    ISpatialReference pre92SpatialReference = pre92GeoDataset.getSpatialReference();

    double falseX[] = new double[1];
    double falseY[] = new double[1];
    double xyUnits[] = new double[1];
    pre92SpatialReference.getFalseOriginAndUnits(falseX, falseY, xyUnits);

    System.out.println("Low precision coordinate grid definition:\n" + "false x: " +
        falseX[0] + ", false y: " + falseY[0] + ", scale factor: " + xyUnits[0]);


    ISpatialReferenceFactory3 spatialReferenceFactory = new
        SpatialReferenceEnvironment();
    ISpatialReference spatialReference92 =
        spatialReferenceFactory.constructHighPrecisionSpatialReference
        (pre92SpatialReference,  - 1,  - 1,  - 1);

    spatialReference92.getFalseOriginAndUnits(falseX, falseY, xyUnits);
    System.out.println("high precision coordinate grid definition:\n" + "false x: " 
        + falseX[0] + ", false y: " + falseY[0] + ", scale factor: " + xyUnits[0]);
}