问一个很菜的问题,不要笑我...
class Employee
{
public Employee(String n, double s,
int year, int month, int day)
{
name = n;
salary = s;
GregorianCalendar calendar
= new GregorianCalendar(year, month - 1, day);
// GregorianCalendar uses 0 for January
hireDay = calendar.getTime();
}
public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
public Date getHireDay()
{
return hireDay;
}
public void raiseSalary(double byPercent)
{
double raise = salary * byPercent / 100;
salary += raise;
}
private String name;
private double salary;
private Date hireDay;
}
构造器里面的name,salary和最后面private定义的name,salary有什么不同。
为何构造器里不用String,double的。
代码源自《java核心技术卷1》P102,虽然后面有点解释但看不怎么明白,
请高手解惑