package com.yydcdut; public class Employee implements Company { private String name; private String position; private int salary; public Employee(String name, String position, int salary) { super(); this.name = name; this.position = position; this.salary = salary; } @Override public String getInfo() { String info = ""; info = "名称：" + name + "\t职位" + position + "\t薪水" + salary; return info; } }

package com.yydcdut; public class Main { public static void main(String[] args) { //BOSS ConcreteCompany root = new ConcreteCompany("zhangsan","ceo",10000); //Manager ConcreteCompany developDep = new ConcreteCompany("sisi", "yanha", 8000); ConcreteCompany salesDep = new ConcreteCompany("wangwu", "xiaoshou", 8000); ConcreteCompany financeDep = new ConcreteCompany("maliu", "caiwu", 8000); //employee Employee e1 = new Employee("A", "yanfa", 3000); Employee e2 = new Employee("B", "yanfa", 4000); Employee e3 = new Employee("C", "yanfa", 5000); Employee e4 = new Employee("D", "yanfa", 6000); Employee e5 = new Employee("E", "xiaoshou", 3000); Employee e6 = new Employee("F", "xiaoshou", 4000); Employee e7 = new Employee("G", "xiaoshou", 5000); Employee e8 = new Employee("H", "xiaoshou", 3000); Employee e9 = new Employee("I", "caiwu", 3000); //tree  root.add(developDep); root.add(salesDep); root.add(financeDep); developDep.add(e1); developDep.add(e2); developDep.add(e3); developDep.add(e4); salesDep.add(e5); salesDep.add(e6); salesDep.add(e7); salesDep.add(e8); financeDep.add(e9); System.out.println(root.getInfo()); display(root); } public static void display(ConcreteCompany root) { for(Company c : root.getChild()) { if(c instanceof Employee) { System.out.println(c.getInfo()); } else { System.out.println("\n"+c.getInfo()); display((ConcreteCompany) c); } } } }

名称：zhangsan    职位ceo    薪水10000

名称：sisi    职位yanha    薪水8000
名称：A    职位yanfa    薪水3000
名称：B    职位yanfa    薪水4000
名称：C    职位yanfa    薪水5000
名称：D    职位yanfa    薪水6000

名称：wangwu    职位xiaoshou    薪水8000
名称：E    职位xiaoshou    薪水3000
名称：F    职位xiaoshou    薪水4000
名称：G    职位xiaoshou    薪水5000
名称：H    职位xiaoshou    薪水3000

名称：maliu    职位caiwu    薪水8000
名称：I    职位caiwu    薪水3000