架构师训练营 -week3 命题作业

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发布于: 2020 年 06 月 21 日

本周作业是利用组合模式打印登陆窗口程序以及手写单例模式。
﻿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。
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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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直接上代码：
package jiketime_homework.week03;
/**
 * @author jeffSmile
 * @date 2020-06-21 上午 11:40
 * @desc
 */
public interface Component {
    void print();
}
﻿
package jiketime_homework.week03;
/**
 * @author jeffSmile
 * @date 2020-06-21 上午 11:44
 * @desc 元素类组件
 */
public class Element implements Component{
    private String name;
    public Element(String name){
        this.name=name;
    }
    @Override
    public void print() {
        System.out.println("loading :" + name);
    }
}
﻿
package jiketime_homework.week03;
import java.util.ArrayList;
import java.util.List;
/**
 * @author jeffSmile
 * @date 2020-06-21 上午 11:48
 * @desc 容器类组件
 */
public class Container  implements Component{
    List<Component> components = new ArrayList<>();
    private String name;
    public Container(String name){
        this.name = name;
    }
    public void addComponent(Component component){
        components.add(component);
    }
    @Override
    public void print() {
        System.out.println("loading :" + name);
        for (Component component: components) {
            component.print();
        }
    }
}
﻿
打印程序：
package jiketime_homework.week03;
/**
 * @author jeffSmile
 * @date 2020-06-21 上午 11:58
 * @desc 打印窗口程序
 */
public class PrintProgram {
    public static void main(String[] args) {
        Container winForm = new Container("winForm");
        Component picture = new Element("LOGO PICTURE");
        Component loginBtn = new Element("LOGIN BUTTON");
        Component regBtn = new Element("REGISTER BUTTON");
        Container frame = new Container("FRAME");
        winForm.addComponent(picture);
        winForm.addComponent(loginBtn);
        winForm.addComponent(regBtn);
        winForm.addComponent(frame);
        Component userLabel = new Element("USERNAME LABEL");
        Component passLabel = new Element("PASSWORD LABEL");
        Component userCheckBox = new Element("USERNAME checkBox");
        Component passCheckBox = new Element("PASSWORD checkBox");
        Component rememberCheckBox = new Element("REMEMBER checkBox");
        Component rememberUserLabel = new Element("REMEMBER USERNAME LABEL");
        Component forgetPWDLabel = new Element("FORGET PASSWORD LABEL");
        frame.addComponent(userLabel);
        frame.addComponent(passLabel);
        frame.addComponent(userCheckBox);
        frame.addComponent(passCheckBox);
        frame.addComponent(rememberCheckBox);
        frame.addComponent(rememberUserLabel);
        frame.addComponent(forgetPWDLabel);
        winForm.print();
    }
}
运行程序打印结果：
loading :winForm
loading :LOGO PICTURE
loading :LOGIN BUTTON
loading :REGISTER BUTTON
loading :FRAME
loading :USERNAME LABEL
loading :PASSWORD LABEL
loading :USERNAME checkBox
loading :PASSWORD checkBox
loading :REMEMBER checkBox
loading :REMEMBER USERNAME LABEL
loading :FORGET PASSWORD LABEL
﻿