java订单金额分级计算

package ord;
import java.util.ArrayList;

public class order {
    public String orderid;
    public user user;
    public ArrayList<product> pdls;
    public float ordernum;
    public float ordmon;
    public double acfee;
    public double tolmon;
    public void getdeunt() {
        float sum=0;
        for(int i=0;i<this.pdls.size();i++) {
            sum +=this.pdls.get(i).price *this.pdls.get(i).num;

        }
        this.ordmon = sum;

    }
    public void setmon() {
        double tmp=0;
        if(this.ordmon>=1000 & this.ordmon<2000) {
            tmp=0.98;
        }
        else if(this.ordmon>=2000 & this.ordmon <3000) {
            tmp=0.95;

        }
        else if(this.ordmon>=3000) {
            tmp=0.90;
        }
        //user level
        double acfee=0;
        if(this.user.level.equals("gold")) {
            acfee=0.98*tmp;
            }
        else if(this.user.level.equals("dia")) {
            acfee = 0.96*tmp;

        }
        else if(this.user.level.equals("super")) {
            acfee=0.92*tmp;

        }
        this.acfee=acfee;

    }
    public void acmon() {
        double tmon;
        tmon =this.acfee * this.ordmon;
        this.tolmon=tmon;

    }
    }

package ord;

public class product {
    String orderid;
    String pron;
    double price;
    Integer num;

public product(String orderid,String name,double price,int num) {
    this.orderid =orderid;
    this.pron = name;
    this.price =price;
    this.num =num;
}
}

package ord;

public class user {
    String usid;
    String usna;
    String level;
    public  user(String usid,String usna,String level) {
        this.usid =usid;
        this.usna=usna;
        this.level=level;

    }

}

package ord;
import java.util.ArrayList;

public class ordertt {

    public static void main(String []args) {
        order o1 =new order();
        user user=new user("a","li","gold");
        o1.user =user;

        ArrayList<product> pdfs = new ArrayList<product>();
        product p1 = new product("1","ab",11.1,200);
        product p2 = new product("2","abb",10,200);
        pdfs.add(p1);
        pdfs.add(p2);
        o1.pdls = pdfs;
        o1.getdeunt();
        o1.setmon();
        o1.acmon();
        System.out.print(o1.tolmon);

    }

}