初试装饰模式-（公司人员）

public class Ornament {

    public static void main(String[] args) {
        Personnel personnel = new Personnel();
        CompanyA companyA = new CompanyA();
        CompanyB companyB = new CompanyB();
        companyA.MakeUp(personnel);
        companyA.logo();
        companyA.per();
        companyB.MakeUp(personnel);
        companyB.logo();
        companyB.per();
    }
}
//人员类
class Personnel{
    public void per() {
        System.out.println("在工作");
    }
}
//公司类
class Company extends Personnel{
    protected Personnel personnel;
    public void MakeUp(Personnel personnel) {
        this.personnel = personnel;
    }
    public void per() {
        if(personnel != null) personnel.per();
    }
}
//A公司
class CompanyA extends Company{

    public void logo() {
        System.out.println("A公司");
    }
    public void work() {
        System.out.print("UI");
    }
    public void per() {
        work();
        super.per();
    }
}
//B公司
class CompanyB extends Company{

    public void logo() {
        System.out.println("B公司");
    }
    public void work() {
        System.out.print("Java");
    }
    public void per() {
        work();
        super.per();
    }
    
}

输出：