简单应用单例模式

进行参数传值及本类属性值调用

 public class TBalancesUtil {
    private double before_amount;
    private double fen_qi_amountAll;
    private double fen_qi_amount;
    private TBalances tBalances;
    private TBalances tBalancesNew;
    private TGrocery tGrocery;
    private String period_name;
    private int period_fen_qi_shu;

    public TBalancesUtil() {

    }

    private static class Inner {
        private static TBalancesUtil getInstance(TBalances tBalances, TBalances tBalancesNew, TGrocery tGrocery, String period_name, int period_fen_qi_shu) {
            return new TBalancesUtil(tBalances, tBalancesNew, tGrocery, period_name, period_fen_qi_shu);
        }
    }

    public static TBalancesUtil getSingle(TBalances tBalances, TBalances tBalancesNew, TGrocery tGrocery, String period_name, int period_fen_qi_shu) {
        return Inner.getInstance(tBalances, tBalancesNew, tGrocery, period_name, period_fen_qi_shu);
    }


    public TBalancesUtil(TBalances tBalances, TBalances tBalancesNew, TGrocery tGrocery, String period_name, int period_fen_qi_shu) {
        this.tBalances = tBalances;
        this.tBalancesNew = tBalancesNew;
        this.tGrocery = tGrocery;
        this.period_name = period_name;
        this.period_fen_qi_shu = period_fen_qi_shu;
        this.before_amount = MathUtil.multiply(MathUtil.multiply(tBalances.getServicemoney(), tGrocery.getFixed_rate(), tGrocery.getKeep_decimal()), tGrocery.getBefore_amount_rate(), tGrocery.getKeep_decimal());
        this.fen_qi_amountAll = MathUtil.multiply(MathUtil.multiply(tBalances.getServicemoney(), tGrocery.getFixed_rate(), tGrocery.getKeep_decimal()), tGrocery.getFen_qi_amount_rate(), tGrocery.getKeep_decimal());
        this.fen_qi_amount = MathUtil.divide(MathUtil.multiply(MathUtil.multiply(tBalances.getServicemoney(), tGrocery.getFixed_rate(), tGrocery.getKeep_decimal()), tGrocery.getFen_qi_amount_rate(), tGrocery.getKeep_decimal()), tBalances.getFen_qi_shu(), tGrocery.getKeep_decimal());
    }


    public TBalances firstMouth() {
        tBalancesNew.setId(tBalances.getId());
        tBalancesNew.setContnum(tBalances.getContnum());
        tBalancesNew.setAccount_time(tBalances.getAccount_time());
        tBalancesNew.setFen_qi_shu(tBalances.getFen_qi_shu());
        tBalancesNew.setServicemoney(tBalances.getServicemoney());
        tBalancesNew.setBefore_amount(before_amount);
        tBalancesNew.setDone_fen_qi_amount(fen_qi_amount);
        tBalancesNew.setRemained_fen_qi_shu(tBalances.getFen_qi_shu() - 1);
        tBalancesNew.setRemained_fen_qi_amount(fen_qi_amountAll - fen_qi_amount);
        tBalancesNew.setCreate_date(tBalances.getCreate_date());
        tBalancesNew.setPeriod_name(period_name);
        tBalancesNew.setFen_qi_amount(fen_qi_amount);
        tBalancesNew.setPeriod_fen_qi_amount(fen_qi_amount);
        tBalancesNew.setPeriod_fen_qi_shu(1);
        tBalancesNew.setContract_status(1);
        return tBalancesNew;
    }


    public TBalances lastMouth() {

        tBalancesNew.setId(tBalances.getId());
        tBalancesNew.setContnum(tBalances.getContnum());
        tBalancesNew.setAccount_time(tBalances.getAccount_time());
        tBalancesNew.setFen_qi_shu(tBalances.getFen_qi_shu());
        tBalancesNew.setServicemoney(tBalances.getServicemoney());
        tBalancesNew.setDone_fen_qi_amount(fen_qi_amountAll);
        tBalancesNew.setCreate_date(tBalances.getCreate_date());
        tBalancesNew.setBefore_amount(0.00);
        tBalancesNew.setRemained_fen_qi_shu(period_fen_qi_shu);
        tBalancesNew.setRemained_fen_qi_amount(0.00);
        tBalancesNew.setFen_qi_amount(MathUtil.subtract(fen_qi_amountAll, MathUtil.multiply(fen_qi_amount, (period_fen_qi_shu - 1), 2), 2));
        tBalancesNew.setContract_status(2);
        tBalancesNew.setPeriod_name(period_name);
        tBalancesNew.setPeriod_fen_qi_amount(MathUtil.subtract(fen_qi_amountAll, MathUtil.multiply(fen_qi_amount, (period_fen_qi_shu - 1), 2), 2));
        tBalancesNew.setPeriod_fen_qi_shu(period_fen_qi_shu);

        return tBalancesNew;
    }


    public TBalances middleMouth() {
        tBalancesNew.setId(tBalances.getId());
        tBalancesNew.setContnum(tBalances.getContnum());
        tBalancesNew.setAccount_time(tBalances.getAccount_time());
        tBalancesNew.setFen_qi_shu(tBalances.getFen_qi_shu());
        tBalancesNew.setServicemoney(tBalances.getServicemoney());

        tBalancesNew.setPeriod_fen_qi_shu(period_fen_qi_shu);
        tBalancesNew.setContnum(tBalances.getContnum());
        tBalancesNew.setAccount_time(tBalances.getAccount_time());
        tBalancesNew.setFen_qi_shu(tBalances.getFen_qi_shu());
        tBalancesNew.setDone_fen_qi_amount(MathUtil.multiply(period_fen_qi_shu, fen_qi_amount, 2));
        tBalancesNew.setServicemoney(tBalances.getServicemoney());
        tBalancesNew.setCreate_date(tBalances.getCreate_date());
        tBalancesNew.setBefore_amount(0.00);
        tBalancesNew.setRemained_fen_qi_shu(period_fen_qi_shu);
        tBalancesNew.setRemained_fen_qi_amount(MathUtil.subtract(fen_qi_amountAll, MathUtil.multiply(period_fen_qi_shu, fen_qi_amount, 2), 2));
        tBalancesNew.setFen_qi_amount(fen_qi_amount);
        tBalancesNew.setContract_status(tBalances.getContract_status());
        tBalancesNew.setPeriod_name(period_name);
        tBalancesNew.setPeriod_fen_qi_amount(fen_qi_amount);

        return tBalancesNew;
    }

}