架构师训练营 - 第三课作业 -20200624- 单例及组合模式

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发布于: 2020 年 06 月 23 日

作业一：1. 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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package demo.pattern.composite;
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public class CompositePatternDemo {
    public static void main(String[] args) throws IllegalAccessException, InstantiationException {
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        Element logo = new Picture("logo",30, 100,null);
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        Element userLabel = new Element("userLabel",5, 10, "用户", null);
        Element userTextbox = new Element("userTextbox",5, 30, null);
        Element passwordLabel = new Element("passwordLabel",5, 10, "密码", null);
        Element passwordTextbox = new Element("passwordTextbox",5, 30, null);
        Element RememberUserLabel = new Element("RememberUserLabel",5, 10, "记住用户", null);
        Element RememberUserCheckbox = new Checkbox("RememberUserCheckbox",5, 30, Boolean.FALSE);
        Element forgetPLabel = new LinkLabel("forgetPLabel",5, 10, "忘记密码", null, "http://localhost");
        Container frame = new Container("frame",80, 100, "#FFFF00");
        frame.addElement(userLabel);
        frame.addElement(userTextbox);
        frame.addElement(passwordLabel);
        frame.addElement(passwordTextbox);
        frame.addElement(RememberUserLabel);
        frame.addElement(RememberUserCheckbox);
        frame.addElement(forgetPLabel);
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        Element loginButton = new Button("loginButton",5, 10, "登录", "#FF00FF");
        Element signupButton = new Button("signupButton",5, 10, "注册", "#FF00FF");
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        Container window = new Container("WinForm",180, 180, "#00FF00");
        window.addElement(logo);
        window.addElement(frame);
        window.addElement(loginButton);
        window.addElement(signupButton);
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        windown.display();
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    }
}
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package demo.pattern.composite;
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import java.util.ArrayList;
import java.util.List;
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public class Container extends Element {
    public List<Element> elements = new ArrayList<>(10);
    public Container(String name, Integer height, Integer width, String backgroundColor) {
        super(name, height, width, backgroundColor);
    }
    public Container(String name, Integer height, Integer width, String backgroundColor, List<Element> elements) {
        super(name, height, width, backgroundColor);
        this.elements = elements;
    }
    public void addElement(Element element) {
        this.elements.add(element);
    }
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    public List<Element> getElements() {
        return elements;
    }
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    public void setElements(List<Element> elements) {
        this.elements = elements;
    }
    @Override
    public void display() {
        for (Element e : this.elements) {
            e.display();
        }
    }
}
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package demo.pattern.composite;
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public class Element {
    public String name=null;
    public Integer height=0;
    public Integer width=0;
    public String value=null;
    public String backgroundColor="#FFFFFF";
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    public Element(String name, Integer height, Integer width, String value, String backgroundColor) {
        this.name = name;
        this.height = height;
        this.width = width;
        this.value = value;
        this.backgroundColor = backgroundColor;
    }
    public Element() {
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    }
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    public Element(String name, Integer height, Integer width, String value) {
        this.name = name;
        this.height = height;
        this.width = width;
        this.value = value;
    }
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    public Element(String name, Integer height, Integer width) {
        this.name = name;
        this.height = height;
        this.width = width;
    }
    public void display() {
        System.out.println("println "+ this.getName());
    };
    }
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