g2kg/g2lb

UnitTool.java

class UnitTool {

    /*
     * g to kg
     */
    public static float g2kg(float g, int divisionValueCode) {
        float kg = g / 1000.f;
        float v = gunit_general(kg, divisionValueCode);
        return v;
    }

    /*
     * g to lb
     */
    public static float g2lb(float g, int divisionValueCode) {
        float lb = g * 0.0022046f;
        float v = gunit_general(lb, divisionValueCode);
        return v;
    }

    private static int getInt(float v) {
        int v2 = v * 10;
        int mod = v2 % 10;

        if (mod >= 9) {
            return v + 1;
        }
        return v;
    }

    private static float gunit_general(float v, int divisionValueCode) {
        switch (divisionValueCode) {
        case 0: {
            // 0.01
            float v2 = v * 1000;
            int weight = getInt(v2);
            weight += 5;
            weight = weight / 10.0;
            return (weight / 100.0f);
        }
            break;
        case 1: {
            // 0.02
            float v2 = v * 1000;
            int weight = getInt(v2);
            weight += 10;
            weight = weight / 10.0;
            if ((weight % 2) != 0) {
                weight -= 1;
            }
            return (weight / 100.0f);
        }
            break;
        case 2: {
            // 0.05
            float v2 = v * 1000;
            int weight = getInt(v2);
            weight += 20;
            weight = weight / 10.0;
            int mod = weight % 10;
            if (mod >= 5) {
                weight = ((int) (weight / 10) * 10) + 5;
            } else {
                weight = ((int) (weight / 10) * 10);
            }
            return (weight / 100.0f);
        }
            break;
        case 3: {
            // 0.1
            float v2 = v * 100;
            int weight = getInt(v2);
            weight = weight + 5;
            weight = weight / 10.0;
            return (weight / 10.0f);
        }
            break;
        case 4: {
            // 0.2
            float v2 = v * 100;
            int weight = getInt(v2);
            weight += 10;
            weight = weight / 10.0;
            if ((weight % 2) != 0) {
                weight -= 1;
            }
            return (weight / 10.0f);
        }
            break;
        default:
            break;
        }
        return v;
    }

}