请用Java代码定义一个部门类Department 属性：部门编号、部门名称、部门人数、部门职责、部门经理 定义两个构造方法：无参和有参各一 定义成员方法：输出信息printDetail() --------------------------- 其有一个子类研发部类ResearchDept 属性：研发方向speciality 在构造方法中调用父类构造方法 重写printDetail()方法

以下是Java代码：

public class Department {
    private String deptId;
    private String deptName;
    private int numOfEmployees;
    private String responsibilities;
    private String manager;

    public Department() {}

    public Department(String deptId, String deptName, int numOfEmployees, String responsibilities, String manager) {
        this.deptId = deptId;
        this.deptName = deptName;
        this.numOfEmployees = numOfEmployees;
        this.responsibilities = responsibilities;
        this.manager = manager;
    }

    public void printDetail() {
        System.out.println("部门编号：" + deptId);
        System.out.println("部门名称：" + deptName);
        System.out.println("部门人数：" + numOfEmployees);
        System.out.println("部门职责：" + responsibilities);
        System.out.println("部门经理：" + manager);
    }
}

public class ResearchDept extends Department {
    private String speciality;

    public ResearchDept(String deptId, String deptName, int numOfEmployees, String responsibilities, String manager, String speciality) {
        super(deptId, deptName, numOfEmployees, responsibilities, manager);
        this.speciality = speciality;
    }

    @Override
    public void printDetail() {
        super.printDetail();
        System.out.println("研发方向：" + speciality);
    }
}