class StatSettings {

        private double epsilon = 0.001;
        private double probability = 0.85;
        private boolean useEdgeWeight = false;

        private void save(PageRank stat) {<FILL_FUNCTION_BODY>}

        private void load(PageRank stat) {
            stat.setEpsilon(epsilon);
            stat.setProbability(probability);
            stat.setUseEdgeWeight(useEdgeWeight);
        }
    }

            this.epsilon = stat.getEpsilon();
            this.probability = stat.getProbability();
            this.useEdgeWeight = stat.isUseEdgeWeight();
        
<no_super_class>