Week3 命题作业

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发布于: 2020 年 06 月 19 日
一、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。
二、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。
解答：       组件关系参考下图
CompositePatternDemo.java
package composite;
public class CompositePatternDemo {
  public static void main(String[] args) {
    Component winForm = new WinForm("WINDOW窗口");
    Component picture = new Picture("LOGO图片");
    Component btnLogin = new Button("登录");
    Component btnRegister = new Button("注册");
    Component frame1 = new Frame("FRAME1");
    Component labelUsername = new Label("用户名");
    Component textBoxUsername = new TextBox("文本框");
    Component labelPassword = new Label("密码");
    Component pwdBox = new PasswordBox("密码框");
    Component checkBoxRemember = new CheckBox("复选框");
    Component textBoxRemember = new TextBox("记住用户名");
    Component linkLabelForget = new LinkLabel("忘记密码");
    winForm.add(picture);
    winForm.add(btnLogin);
    winForm.add(btnRegister);
    winForm.add(frame1);
    frame1.add(labelUsername);
    frame1.add(textBoxUsername);
    frame1.add(labelPassword);
    frame1.add(pwdBox);
    frame1.add(checkBoxRemember);
    frame1.add(textBoxRemember);
    frame1.add(linkLabelForget);
    winForm.print();
  }
}
Component.java
package composite;
import java.util.List;
public interface Component {
  public void print();
  public void add(Component e);
  public void remove(Component e);
  public List<Component> getSubComponents();
}
Container.java
package composite;
import java.util.ArrayList;
import java.util.List;
public class Container implements Component {
  private String name;
  private List<Component> subComponents;
  public Container(String name) {
    this.name = name;
    this.subComponents = new ArrayList<Component>();
  }
  public void add(Component e) {
    this.subComponents.add(e);
  }
  public void remove(Component e) {
    this.subComponents.remove(e);
  }
  public List<Component> getSubComponents() {
    return this.subComponents;
  }
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
    if (null != this.subComponents) {
      for (Component subComponent : this.subComponents) {
        subComponent.print();
      }
    }
  }
}
WinForm.java
package composite;
 
public class WinForm extends Container {
   public WinForm(String name) {
      super(name);
      // TODO Auto-generated constructor stub
   }
}
Frame.java
package composite;
public class Frame extends WinForm {
  public Frame(String name) {
    super(name);
    // TODO Auto-generated constructor stub
  }
}
Picture.java
package composite;
import java.util.List;
public class Picture implements Component {
  private String name;
  public Picture(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
Button.java
package composite;
import java.util.List;
public class Button implements Component {
  private String name;
  public Button(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
Label.java
package composite;
import java.util.List;
public class Label implements Component {
  private String name;
  public Label(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
TextBox.java
package composite;
import java.util.List;
public class TextBox implements Component {
  private String name;
  public TextBox(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
PasswordBox.java
package composite;
import java.util.List;
public class PasswordBox implements Component {
  private String name;
  public PasswordBox(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
CheckBox.java
package composite;
import java.util.List;
public class CheckBox implements Component {
  private String name;
  public CheckBox(String name) {
    this.name = name;
  }
  @Override
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
LinkLabel.java
package composite;
import java.util.List;
public class LinkLabel implements Component {
  private String name;
  public LinkLabel(String name) {
    this.name = name;
  }
  public void print() {
    System.out.println("print " + this.getClass().getSimpleName() + "(" + name + ")");
  }
  @Override
  public void add(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public void remove(Component e) {
    // TODO Auto-generated method stub
  }
  @Override
  public List<Component> getSubComponents() {
    // TODO Auto-generated method stub
    return null;
  }
}
使用VSCode终端运行结果如下：
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