七、外观模式

/**
 * 外观模式
 * @author lay
 */
public class FacadeDemo {
    
    public static void main(String[] args) {
        PersonMaker personMaker = new PersonMaker();
        personMaker.studentSay();
        personMaker.lawerSay();
    }
    
}

class PersonMaker{ // 外观类
    
    private Person lawer;
    private Person student;
    
    public PersonMaker(){ // 构建类实例对象
        this.lawer = new Lawer();
        this.student = new Student();
    }
    
    public void studentSay(){ // 提供student类对外接口
        student.say();
    }
    
    public void lawerSay(){ // 提供lawer类对外接口
        lawer.say();
    }
}

interface Person{
    public void say();
}

class Lawer implements Person{

    @Override
    public void say() {
        System.out.println("i‘m a lawer");
    }
    
}

class Student implements Person{

    @Override
    public void say() {
        System.out.println("i‘m a student");
    }
    
}