// 聚合关系

// 以员工和部门之间的关系为例，演示部门类和员工类的聚合关系。

package aggregation;

public class Department {

    Employee[] employees;

    public static void main(String[] args) {

        Employee e1 = new Employee();

        Employee e2 = new Employee();

        Employee e3 = new Employee();

        Employee e4 = new Employee();

        Department dept1 = new Department();

        dept1.employees = new Employee[]{ e1,e2,e3 };

        Department dept2 = new Department();

        dept2.employees = new Employee[]{ e3,e4 };

        System.out.println("123");

    }

}

class Employee {}