public abstract class OrganizationComponent {
	private String name; // 名字
	private String des; // 說(shuō)明
	protected  void add(OrganizationComponent organizationComponent) {
		//默認(rèn)實(shí)現(xiàn)
		throw new UnsupportedOperationException();
	}
	protected  void remove(OrganizationComponent organizationComponent) {
		//默認(rèn)實(shí)現(xiàn)
		throw new UnsupportedOperationException();
	}
	//構(gòu)造器
	public OrganizationComponent(String name, String des) {
		super();
		this.name = name;
		this.des = des;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getDes() {
		return des;
	public void setDes(String des) {
		this.des = des;
	}
	//方法print, 做成抽象的, 子類都需要實(shí)現(xiàn)
	protected abstract void print();
}

//University 就是 Composite , 可以管理College
public class University extends OrganizationComponent {
	List<OrganizationComponent> organizationComponents = new ArrayList<OrganizationComponent>();
	// 構(gòu)造器
	public University(String name, String des) {
		super(name, des);
	}
	// 重寫add
	@Override
	protected void add(OrganizationComponent organizationComponent) {
		organizationComponents.add(organizationComponent);
	}
	// 重寫remove
	@Override
	protected void remove(OrganizationComponent organizationComponent) {
		organizationComponents.remove(organizationComponent);
	}
	@Override
	public String getName() {
		return super.getName();
	}
	@Override
	public String getDes() {
		return super.getDes();
	}
	// print方法，就是輸出University 包含的學(xué)院
	@Override
	protected void print() {
		System.out.println("--------------" + getName() + "--------------");
		//遍歷 organizationComponents 
		for (OrganizationComponent organizationComponent : organizationComponents) {
			organizationComponent.print();
		}
	}
}
// 可以管理Department
public class College extends OrganizationComponent {
	//List 中 存放的Department
	List<OrganizationComponent> organizationComponents = new ArrayList<OrganizationComponent>();
	// 構(gòu)造器
	public College(String name, String des) {
		super(name, des);
	}
	// 重寫add
	@Override
	protected void add(OrganizationComponent organizationComponent) {
		//  將來(lái)實(shí)際業(yè)務(wù)中，Colleage 的 add 和  University add 不一定完全一樣
		organizationComponents.add(organizationComponent);
	}
	// 重寫remove
	@Override
	protected void remove(OrganizationComponent organizationComponent) {
		organizationComponents.remove(organizationComponent);
	}
	@Override
	public String getName() {
		return super.getName();
	}
	@Override
	public String getDes() {
		return super.getDes();
	}
	// print方法，就是輸出University 包含的學(xué)院
	@Override
	protected void print() {
		System.out.println("--------------" + getName() + "--------------");
		//遍歷 organizationComponents 
		for (OrganizationComponent organizationComponent : organizationComponents) {
			organizationComponent.print();
		}
	}
}

public class Department extends OrganizationComponent {
	//沒有集合
	public Department(String name, String des) {
		super(name, des);
	}
	//add , remove 就不用寫了，因?yàn)樗侨~子節(jié)點(diǎn)
	@Override
	public String getName() {
		return super.getName();
	}
	@Override
	public String getDes() {
		return super.getDes();
	}
	@Override
	protected void print() {
		System.out.println(getName());
	}
}

public class Client {
	public static void main(String[] args) {
		//從大到小創(chuàng)建對(duì)象 學(xué)校
		OrganizationComponent university = new University("清華大學(xué)", " 中國(guó)頂級(jí)大學(xué) ");
		//創(chuàng)建 學(xué)院
		OrganizationComponent computerCollege = new College("計(jì)算機(jī)學(xué)院", " 計(jì)算機(jī)學(xué)院 ");
		OrganizationComponent infoEngineercollege = new College("信息工程學(xué)院", " 信息工程學(xué)院 ");
		//創(chuàng)建各個(gè)學(xué)院下面的系(專業(yè))
		computerCollege.add(new Department("軟件工程", " 軟件工程不錯(cuò) "));
		computerCollege.add(new Department("網(wǎng)絡(luò)工程", " 網(wǎng)絡(luò)工程不錯(cuò) "));
		computerCollege.add(new Department("計(jì)算機(jī)科學(xué)與技術(shù)", " 計(jì)算機(jī)科學(xué)與技術(shù)是老牌的專業(yè) "));
		infoEngineercollege.add(new Department("通信工程", " 通信工程不好學(xué) "));
		infoEngineercollege.add(new Department("信息工程", " 信息工程好學(xué) "));
		//將學(xué)院加入到 學(xué)校
		university.add(computerCollege);
		university.add(infoEngineercollege);
		//university.print();
		infoEngineercollege.print();
	}
}