Java中的抽象类和具体类构造函数

Question

我有这个界面：

import fondt2.extended.PhoneCall;

public interface Rate {
    public double getCallCost(PhoneCall call);
    public String getName();
    public boolean isApplicableTo(String destinationNumber);
    public boolean isValid();
}

这个抽象类有自己的构造函数：

import fondt2.extended.PhoneCall;
import java.util.Arrays;

public abstract class BandsRate implements Rate {
    protected Band[] bands;
    protected int intervalInMillis;
    protected String name;
    protected String numberRoot;
    protected double startCallCost;

    public BandsRate(String name,Band[] bands, int intervalInMillis, double startCallCost, String numberRoot){
        this.name = name;
        this.intervalInMillis = intervalInMillis;
        this.startCallCost = startCallCost;
        this.numberRoot = numberRoot;
        this.bands = Arrays.copyOf(bands, bands.length);
    }
   public abstract double getCallCost(PhoneCall call);

   protected double getStartCallCost(){
        return this.startCallCost;
    }
   protected int getIntervalInMillis(){
        return this.intervalInMillis;
    }

现在我想创建一个扩展上面抽象类的具体类：

import java.time.Duration;
import fondt2.extended.*;

public class SimpleBandsRate extends BandsRate {

public SimpleBandsRate(String name, Band[] bands, int intervalInMillis, double startCallCost, String numberRoot){
    super(name, bands, intervalInMillis, startCallCost, numberRoot);
}
 double getCallCost(PhoneCall call){
    double costPerInterval = getCostPerInterval(call.getStart());
    if (costPerInterval == -1) {
        return -1;
    }
    long difference = Duration.between(call.getStart(), call.getEnd()).toMillis();
    int intervalCount = (int) (difference / super.getIntervalInMillis());
    return (double) super.getStartCallCost() + intervalCount * costPerInterval; 
  }

}

编译器显示了很多错误：比如＆＃34; String无法解析为变量＆＃34; ，＆＃34;令牌上的语法错误＆＃39; numberRoot＆＃39;删除此标记＆＃34;，＆＃34; startCallCost无法解析为变量＆＃34;等等。我出错了什么？