Java继承-找不到符号构造函数

我不知道如何编译我的子类，即使它调用了超类构造函数

这是一个不会编译的类：

package departments;
import employees.*;

public class DepartmentEmployee extends Employee{

    private Department department;

    public DepartmentEmployee(Profile profile, Address address, Occupation occupation,   Department department) {
        assert (department != null) : "invalid Department";
        super(profile, address, occupation);
        this.department = department;
    }

}

这是超类：

package employees;

public class Employee {

    protected Profile profile;
    protected Address address;
    protected Occupation occupation;

    protected Employee(Profile profile, Address address, Occupation occupation) {
        assert (profile != null) : "invalid Profile";
        assert (address != null) : "invalid Address";
        assert (occupation != null) : "invalid Occupation";
        this.profile = profile;
        this.address = address;
        this.occupation = occupation;
    }

}

子类一直在说“找不到符号-构造函数雇员”。这两个包是不同的。我是否正确链接了它们？

构造函数中的

super（）

需要是第一个调用。将其重新排列在

断言

上方

另见：

• （摘录如下）

调用超类构造函数必须是子类构造函数的第一行

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在你的部门员工中，super（…）不应该是ctor中的第一个电话吗？