银行利率

public class Bank{
   int savedmoney;
   int year;
   double interest;
   double interestrate=0.29;
   public doublecomputerinterest(){
   interest=year*interestrate*savedmoney;
   return interest;
   
   }
   public void setinterestrate(double rate){
   interestrate=rate;
   }
}

public class construchtionBank extends Bank{
   double year;
   public double computerinterest(){
   super.year=(int)year;
   double r=year-(int)year;
   int day=(int)(r*1000);
   double yearinterest=super.computerinterest();
   double dayinterest=day*0.0001*savedmoney;
   interest=yearinterest+dayinterest;
   system.out.printf("%d元存在建设银行%d年零d月零d天的利息为：",savedmoney,super,year,day,interest);
   return interest;
   }
  
   
}
 
 
   
public class Bankofdalian extends Bank{
    double year;
    public double computerinterest(){
    super.year=(int)year;
    double r=year-(int)year;
    int day=(int)(r*1000);
    double yearinterest=super.computerinterest();
    double dayinterest=day*0.00012*savedmoney;
    interest=yearinterest+dayinterest;
    system.out.printlnf("%d元存在大连银行%d年零d月零d天的利息为：",savedmoney,super,year,day,interest)；
    return interest;
    }
}

public class Test{
    public static void main(String arge[]){
    int amount=8000;
    ConstruchtionBank bank1=new construchtionBank();
    bank1.savedmoney=amount;
    bank1.year=8.236;
    ban   
        
        
    }
}