this.packagesfee = packagesfee;

public class PackagedFruit extends Fruit //创建一个PackagedFruit类继承Fruit类
{
private double packagesfee; //定义“精装水果的包装费”
public double getPackagesfee() //获得“精装水果的包装费”
{
return packagesfee;
}
public void setPackagesfee(double packagesfee) //设置“精装水果的包装费”
{
this.packagesfee = packagesfee;
}
}