外观模式10（13）

统一流程

package structural;

public class FacadeMain {

    public static void main(String[] args) {
        
        Facade f = new Facade();
        f.method();
    }
}

class Facade{
    public Facade(){
        System.out.println("甲要去综合部门办理营业执照！");
    }
    SubSystemA a = new SubSystemA();
    SubSystemB b = new SubSystemB();
    SubSystemC c = new SubSystemC();
    public void method(){
        a.methodA();
        b.methodB();
        c.methodC();
    }
}

class SubSystemA{
    public void methodA(){
        System.out.println("去a部门办了第一道手续！");
    }
}
class SubSystemB{
    public void methodB(){
        System.out.println("去b部门办了第二道手续！");
    }
}
class SubSystemC{
    public void methodC(){
        System.out.println("去c部门办了最后一道手续,领了证件！");
    }
}