[问答题] 阅读和理解下面程序段： class Manager extends Employee public Manager(String n,double s,int year,int mo

[问答题] 阅读和理解下面程序段：

class Manager extends Employee

public Manager(String n,double s,int year,int month,int day)

super(n,S,year,month,day);

bonus=0;

public double getSalary()

double baseSalary=super.gerSalary();

return baseSalary+bonus;

public void setBonus(double B) bonus=b；

private double bonus;

Manager是Employee的子类，其理由是( )。

B

本题考查Java中子类的概念。Java中通过在类声明中加入extends子句来创建子类，格式为：class SubClass extens SuperClass{...