架构师训练营 - 第三周命题作业

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发布于: 2020 年 06 月 21 日

1. 请在草稿纸上手写一个单例模式的实现代码，拍照提交作业。
2. 请用组合设计模式编写程序，打印输出图 1 的窗口，窗口组件的树结构如图 2 所示，打印输出示例参考图 3。
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/**
 * 抽象构件
 **/
public abstract class Component {
    public String getName() {
        throw new UnsupportedOperationException("不支持获取名称操作");
    }
    public void add(Component component) {
        throw new UnsupportedOperationException("不支持添加操作");
    }
    public void remove(Component component) {
        throw new UnsupportedOperationException("不支持删除操作");
    }
    public void print() {
        throw new UnsupportedOperationException("不支持打印操作");
    }
}
﻿
import java.util.ArrayList;
import java.util.List;
/** 树枝
 * @description:
 * @author: liu.w
 * @create: 2020-06-21 23:27
 **/
public class Frame extends Component {
    private String name;
    private List<Component> componentList = new ArrayList<Component>();
    public Frame(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
    @Override
    public void add(Component component) {
        this.componentList.add(component);
    }
    @Override
    public void remove(Component component) {
        this.componentList.remove(component);
    }
    @Override
    public void print() {
        System.out.println(this.getName());
        for (Component component : this.componentList) {
            component.print();
        }
    }
}
﻿
/** 树叶
 * @description:
 * @author: liu.w
 * @create: 2020-06-21 23:23
 **/
public class Leaf extends Component {
    private String name;
    public Leaf(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
    @Override
    public void print() {
        System.out.println(this.getName());
    }
}
﻿
/**
 * 测试类
 **/
public class Test {
    public static void main(String[] args) {
        Frame parent = new Frame("WINDOWS窗口");
        parent.add(new Leaf("LOGO图片"));
        Frame frame = new Frame("FRAME1");
        parent.add(frame);
        
        frame.add(new Leaf("用户名"));
        frame.add(new Leaf("文本框"));
        frame.add(new Leaf("密码"));
        frame.add(new Leaf("密码框"));
        frame.add(new Leaf("复选框"));
        frame.add(new Leaf("记住用户名"));
        frame.add(new Leaf("忘记密码"));
        
        parent.add(new Leaf("登录"));
        parent.add(new Leaf("注册"));
        parent.print();
    }
}
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