架构师培训 -03 设计模式

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发布于: 2020 年 06 月 22 日

1. 手写单例模式代码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. 用组合设计模式编写程序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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2.1类图
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2.2输出结果
2.3主要代码2.3.1组件接口
package com.lm;
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public interface Component {
    void print();
}
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2.3.2抽象类将组件设置名字代码抽出到这个抽象类中。
package com.lm;
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public  abstract class AbStractComponent implements Component {
    protected String name;
    public AbStractComponent(String name) {
        this.name = name;
    }
}
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2.3.3WinForm类
package com.lm;
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import java.util.ArrayList;
import java.util.List;
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public class WinForm extends AbStractComponent {
    private List<Component> componentList = new ArrayList<>();
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    public WinForm(String name) {
        super(name);
    }
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    public void addComponent(Component component) {
        componentList.add(component);
    }
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    @Override
    public void print() {
        System.out.println("WinForm("+this.name+")");
        for (Component component : componentList) {
            component.print();
        }
    }
}
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2.3.4Button组件
package com.lm;
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public class Button extends AbStractComponent {
    public Button(String name) {
        super(name);
    }
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    @Override
    public void print() {
        System.out.println("Button("+this.name+")");
    }
}
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2.3.5测试代码
package com.lm;
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import javax.swing.*;
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public class LoginMain {
    public static void main(String[] args) {
        WinForm winForm = new WinForm("WINDOW窗口");
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        Component logo = new Picture("LOGO图片");
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        Frame frame = new Frame("FRAME1");
        Component userName = new Lable("用户名");
        Component userNameText = new TextBox("文本框");
        Component password = new Lable("密码");
        Component passwordText = new PasswordBox("密码框");
        Component checkbox = new CheckBox("复选框");
        Component remember = new Lable("记住用户名");
        Component forgetPassword = new LinkLable("忘记密码");
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        Component login = new Button("登录");
        Component register = new Button("注册");
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        frame.addComponent(userName);
        frame.addComponent(userNameText);
        frame.addComponent(password);
        frame.addComponent(passwordText);
        frame.addComponent(checkbox);
        frame.addComponent(remember);
        frame.addComponent(forgetPassword);
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        winForm.addComponent(logo);
        winForm.addComponent(frame);
        winForm.addComponent(login);
        winForm.addComponent(register);
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        winForm.print();
    }
}
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