第 3 周作业提交

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发布于: 2020 年 12 月 13 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。
采用饿汉式创建单例
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请用组合设计模式编写程序
/**
 * 定义的组件抽象类
 */
public abstract class SubComponent {
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    private String SubComponentName;
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    public SubComponent(String name){
        SubComponentName = name;
    }
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    private List<SubComponent> list;
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    public void add(SubComponent c){
        if( ObjectUtils.isEmpty(list) ) {
            list = new ArrayList<>();
        }
        list.add(c);
    }
	
	public abstract void print();
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}
/**
 * 用于实例化的组件实现类
 */
public class WinForm extends SubComponent {
   public WinForm(String name) {
      super (name);
   }
   @Override
   	public abstract void print() {
      System.out.println(subComponentName);        
	}
}
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public class CheckBox extends SubComponent {
   public WinForm(String name) {
      super (name);
   }
   @Override
   	public abstract void print() {
      System.out.println(subComponentName);        
	}
}
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/**
 * 测试类
 */
public class TestCombination {
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    public static void main(String[] args) {
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        WinForm winForm = new WinForm("WINDOW窗口");
        Picture picture = new Picture("LOGO图片");
        Button login = new Button("登录");
        Button register = new Button("注册");
        Frame frame = new Frame("FRAME1");
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        Lable label1 = new Lable("用户名");
        TextBox textBox1 = new TextBox("文本框");
        Lable label2 = new Lable("密码");
        PasswordBox passwordBox = new PasswordBox("密码框");
        CheckBox checkbox = new CheckBox("复选框");
        TextBox textBox2 = new TextBox("记住用户名");
        LinkLable linkLabel = new LinkLable("忘记密码");
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        frame.add(label1);
        frame.add(textBox1);
        frame.add(label2);
        frame.add(passwordBox);
        frame.add(checkbox);
        frame.add(textBox2);
        frame.add(linkLabel);
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        winForm.add(picture);
        winForm.add(login);
        winForm.add(register);
        winForm.add(frame);
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        winForm.print();
    }
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}
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