架构师训练营 -Week 03 命题作业

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发布于: 2020 年 06 月 24 日
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。
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。
类图：
﻿
代码实现：
Component类
public abstract class Component {
    private String name;
    protected Component(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
    public abstract void print();
}
Container类
public class Container extends Component {
    private List<Component> components = new ArrayList<>();
    public Container(String name) {
        super(name);
    }
    public void addComponent(Component component) {
        components.add(component);
    }
    public Component getComponent(int n) {
        try {
            return components.get(n);
        } catch (IndexOutOfBoundsException z) {
            throw new ArrayIndexOutOfBoundsException("No such child: " + n);
        }
    }
    public List<Component> getComponents() {
        return components;
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
        printComponents();
    }
    public void printComponents() {
        for (Component component : components) {
            component.print();
        }
    }
}
WinForm类
public class WinForm extends Container {
    public WinForm(String name) {
        super(name);
    }
}
Frame类
public class Frame extends Container {
    public Frame(String name) {
        super(name);
    }
}
Picture类
public class Picture extends Component {
    public Picture(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
Button类
public class Button extends Component{
    public Button(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
Label类
public class Label extends Component {
    public Label(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
LinkLabel类
public class LinkLabel extends Component {
    public LinkLabel(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
TextBox类
public class TextBox extends Component {
    public TextBox(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
PasswordBox类
public class PasswordBox extends Component {
    public PasswordBox(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
 } 
CheckBox类
public class CheckBox extends Component {
    public CheckBox(String name) {
        super(name);
    }
    @Override
    public void print() {
        System.out.printf("print %s(%s)\n", getClass().getSimpleName(), getName());
    }
}
打印窗口组件
public class PrintWindowTest {
    public static void main(String[] args) {
        // 创建窗口、组件，并组装
        WinForm winForm = new WinForm("WINDOW窗口");
        Picture picture = new Picture("LOGO图片");
        Button loginButton = new Button("登录按钮");
        Button registerButton = new Button("注册按钮");
        Frame frame = new Frame("FRAME1");
        Label accountLabel = new Label("用户名");
        TextBox accountTextBox = new TextBox("文本框");
        Label passwordLabel = new Label("密码");
        PasswordBox passwordBox = new PasswordBox("密码框");
        CheckBox checkBox = new CheckBox("复选框");
        TextBox rememberAccountTextBox = new TextBox("记住用户名");
        LinkLabel linkLabel = new LinkLabel("忘记密码");
        frame.addComponent(accountLabel);
        frame.addComponent(accountTextBox);
        frame.addComponent(passwordLabel);
        frame.addComponent(passwordBox);
        frame.addComponent(checkBox);
        frame.addComponent(rememberAccountTextBox);
        frame.addComponent(linkLabel);
        winForm.addComponent(picture);
        winForm.addComponent(loginButton);
        winForm.addComponent(registerButton);
        winForm.addComponent(frame);
        // 打印窗口
        winForm.print();
    }
}
// 输出结果
print WinForm(WINDOW窗口)
print Picture(LOGO图片)
print Button(登录按钮)
print Button(注册按钮)
print Frame(FRAME1)
print Label(用户名)
print TextBox(文本框)
print Label(密码)
print PasswordBox(密码框)
print CheckBox(复选框)
print TextBox(记住用户名)
print LinkLabel(忘记密码)
﻿