cloneable接口的问题！大家帮个忙啊！

[xiaomantoubaba]

import java.util.*;

public class A
{
public static void main(String[] args)
{
Employee a=new Employee("tom1",10000);
Employee b=a;
Employee c=a.clone();
b.raiseSalary(100);
System.out.println("a; "+a.getSalary()
+", b: "+b.getSalary()
+", c: "+c.getSalary());
}
}
class Employee implements Cloneable
{
private String name;
private double salary;

public Employee(String n,double s)
{
name=n;
salary=s;
}
public double getSalary()
{
return salary;
}
public void raiseSalary(double byPercent)
{
double raise=salary*byPercent/100;
salary+=raise;
}
}
怎么错了啊？大家看看啊！谢谢了！

[NewStarter]

是不是
c=(Employee)a.clone();

[xiaomantoubaba]

！有问题

[AlanLuo_2002]

你implement Cloneable接口，就要实现clone方法：
public Object clone()
{
//如果不是深度clone那么必须调用
Employee clone=(Employee)super.clone();
}还有就是类似hashmap等需要深度clone才能做到真真的clone