架构师训练营第三周作业

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发布于: 2020 年 10 月 05 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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单例模式
组合模式
package com.cava.three.component;
public interface Component {
    void print();
}
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package com.cava.three.component;
public abstract class AbstractComponent implements Component {
    private String name;
    public AbstractComponent(String name) {
        this.name = name;
    }
    @Override
    public void print() {
        System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
    }
}
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package com.cava.three.component;
import java.util.ArrayList;
import java.util.List;
public abstract class AbstractComponentContainer extends AbstractComponent {
    private List<Component> components = new ArrayList<Component>();
    public AbstractComponentContainer(String name) {
        super(name);
    }
    public void addComponent(Component component) {
        this.components.add(component);
    }
    @Override
    public void print() {
        super.print();
        for (Component component : components) {
            component.print();
        }
    }
}
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package com.cava.three.component;
public class Button extends AbstractComponent {
    public Button(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class CheckBox extends AbstractComponent {
    public CheckBox(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class Label extends AbstractComponent {
    public Label(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class LinkLabel extends Label {
    public LinkLabel(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class PasswordBox extends AbstractComponent {
    public PasswordBox(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class Picture extends AbstractComponent {
    public Picture(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class TextBox extends AbstractComponent {
    public TextBox(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class Frame extends AbstractComponentContainer {
    public Frame(String name) {
        super(name);
    }
}
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package com.cava.three.component;
public class WinForm extends AbstractComponentContainer {
    public WinForm(String name) {
        super(name);
    }
}
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ackage com.cava.three;
import com.cava.three.component.*;
public class CompositeWindow {
    public static void main(String[] args) {
        WinForm winForm = buildWinForm();
        winForm.print();
    }
    private static WinForm buildWinForm() {
        WinForm winForm = new WinForm("WINDOW窗口");
        winForm.addComponent(new Picture("LOGO图片"));
        winForm.addComponent(new Button("登录"));
        winForm.addComponent(new Button("注册"));
        winForm.addComponent(new Frame("FRAME1"));
        winForm.addComponent(new Label("用户名"));
        winForm.addComponent(new TextBox("文本框"));
        winForm.addComponent(new Label("密码"));
        winForm.addComponent(new PasswordBox("密码框"));
        winForm.addComponent(new CheckBox("复选框"));
        winForm.addComponent(new TextBox("记住用户名"));
        winForm.addComponent(new LinkLabel("忘记密码"));
        return winForm;
    }
}
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