Week 03 命题作业

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发布于: 2020 年 06 月 23 日
1.请在草稿纸上手写一个单例模式的实现代码。
（我写字真是。。。太难看了。。。请忽略这个细节吧，阿门）
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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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解答：
以下我分别用透明式的组合模式和安全式的组合模式实现的代码：
1.透明式的组合模式：
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import java.util.ArrayList;
import java.util.List;
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/*
 * 透明式的合成模式
 */
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//抽象构件
interface IComponent {
	void add(IComponent e);
	void remove(IComponent e);
	List<IComponent> getSubComponentList();
	void print();
} 
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//具体构件(WinForm)(树枝构件)
class WinForm implements IComponent {
	private String name;
	private List<IComponent> subComponentList;
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	public WinForm(String name) {
		this.name = name;
		subComponentList = new ArrayList<IComponent>();
	}
	
	@Override
	public void add(IComponent e) {
		subComponentList.add(e);
	}
	
	@Override
	public void remove(IComponent e) {
		subComponentList.remove(e);
	}
	
	@Override
	public List<IComponent> getSubComponentList(){
		return subComponentList;
	}
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	@Override
	public void print() {
		System.out.println("print WinForm("+name+")");
		for(IComponent subComponent : subComponentList){
			subComponent.print();
		}
	}
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}
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//具体构件(Frame)(树枝构件)
class Frame implements IComponent {
	private String name;
	private List<IComponent> subComponentList;
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	public Frame(String name) {
		this.name = name;
		subComponentList = new ArrayList<IComponent>();
	}
	
	@Override
	public void add(IComponent e) {
		subComponentList.add(e);
	}
	
	@Override
	public void remove(IComponent e) {
		subComponentList.remove(e);
	}
	
	@Override
	public List<IComponent> getSubComponentList(){
		return subComponentList;
	}
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	@Override
	public void print() {
		System.out.println("print Frame("+name+")");
		for(IComponent subComponent : subComponentList){
			subComponent.print();
		}
	}
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}
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//具体构件(Picture)(叶子构件)
class Picture implements IComponent {
	private String name;
	
	public Picture(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print Picture("+name+")");
	}
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}
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//具体构件(Button)(叶子构件)
class Button implements IComponent {
	private String name;
	
	public Button(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print Button("+name+")");
	}
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}
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//具体构件(Label)(叶子构件)
class Label implements IComponent {
	private String name;
	
	public Label(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print Label("+name+")");
	}
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}
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//具体构件(TextBox)(叶子构件)
class TextBox implements IComponent {
	private String name;
	
	public TextBox(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print TextBox("+name+")");
	}
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}
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//具体构件(PasswordBox)(叶子构件)
class PasswordBox implements IComponent {
	private String name;
	
	public PasswordBox(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print PasswordBox("+name+")");
	}
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}
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//具体构件(CheckBox)(叶子构件)
class CheckBox implements IComponent {
	private String name;
	
	public CheckBox(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print CheckBox("+name+")");
	}
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}
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//具体构件(LinkLabel)(叶子构件)
class LinkLabel implements IComponent {
	private String name;
	
	public LinkLabel(String name) {
		this.name = name;
	}
	
	@Override
	public void add(IComponent e) {}
	
	@Override
	public void remove(IComponent e) {}
	
	@Override
	public List<IComponent> getSubComponentList(){return null;}
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	@Override
	public void print() {
		System.out.println("print LinkLabel("+name+")");
	}
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}
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public class CompositePatternDemo {
	public static void main(String[] args) {
		IComponent windowForm = new WinForm("Windows窗口");
		
		IComponent picture = new Picture("LOGO图片");
		IComponent buttonLogin = new Button("登录");
		IComponent buttonRegist = new Button("注册");
		
		IComponent frame = new Frame("FRAME1");
		
		IComponent labelUserName = new Label("用户名");
		IComponent textUserName = new TextBox("文本框");
		IComponent labelPassword = new Label("密码");
		IComponent textPassword = new PasswordBox("密码框");
		IComponent checkBoxRem = new CheckBox("复选框");
		IComponent labelRem = new Label("记住用户名");
		IComponent linkLabelFgtPass = new LinkLabel("忘记密码");
		
		windowForm.add(picture);
		windowForm.add(buttonLogin);
		windowForm.add(buttonRegist);
		windowForm.add(frame);
		frame.add(labelUserName);
		frame.add(textUserName);
		frame.add(labelPassword);
		frame.add(textPassword);
		frame.add(checkBoxRem);
		frame.add(labelRem);
		frame.add(linkLabelFgtPass);
		
		windowForm.print();
		
	}
	
}
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2.安全式的组合模式代码：
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import java.util.ArrayList;
import java.util.List;
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/*
 * 安全式的合成模式
 */
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//抽象构件
interface IComponent {
	void print();
} 
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//抽象树枝构件
abstract class Composite implements IComponent{
	private List<IComponent> subComponentList = new ArrayList<IComponent>();
	
	public void add(IComponent e) {
		subComponentList.add(e);
	}
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	public void remove(IComponent e) {
		subComponentList.remove(e);
	}
	
	public List<IComponent> getSubComponentList(){
		return subComponentList;
	}
}
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//具体构件(WinForm)(树枝构件)
class WinForm extends Composite {
	private String name;
	
	public WinForm(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print WinForm("+name+")");
		List<IComponent> subComponentList = getSubComponentList();
		for(IComponent subComponent : subComponentList){
			subComponent.print();
		}
	}
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}
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//具体构件(Frame)(树枝构件)
class Frame extends Composite {
	private String name;
	
	public Frame(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print Frame("+name+")");
		List<IComponent> subComponentList = getSubComponentList();
		for(IComponent subComponent : subComponentList){
			subComponent.print();
		}
	}
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}
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//具体构件(Picture)(叶子构件)
class Picture implements IComponent {
	private String name;
	
	public Picture(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print Picture("+name+")");
	}
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}
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//具体构件(Button)(叶子构件)
class Button implements IComponent {
	private String name;
	
	public Button(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print Button("+name+")");
	}
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}
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//具体构件(Label)(叶子构件)
class Label implements IComponent {
	private String name;
	
	public Label(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print Label("+name+")");
	}
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}
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//具体构件(TextBox)(叶子构件)
class TextBox implements IComponent {
	private String name;
	
	public TextBox(String name) {
		this.name = name;
	}
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	@Override
	public void print() {
		System.out.println("print TextBox("+name+")");
	}
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}
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//具体构件(PasswordBox)(叶子构件)
class PasswordBox implements IComponent {
	private String name;
	
	public PasswordBox(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print PasswordBox("+name+")");
	}
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}
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//具体构件(CheckBox)(叶子构件)
class CheckBox implements IComponent {
	private String name;
	
	public CheckBox(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print CheckBox("+name+")");
	}
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}
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//具体构件(LinkLabel)(叶子构件)
class LinkLabel implements IComponent {
	private String name;
	
	public LinkLabel(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println("print LinkLabel("+name+")");
	}
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}
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public class CompositePatternDemo {
	public static void main(String[] args) {
		Composite windowForm = new WinForm("Windows窗口");
		
		IComponent picture = new Picture("LOGO图片");
		IComponent buttonLogin = new Button("登录");
		IComponent buttonRegist = new Button("注册");
		
		Composite frame = new Frame("FRAME1");
		
		IComponent labelUserName = new Label("用户名");
		IComponent textUserName = new TextBox("文本框");
		IComponent labelPassword = new Label("密码");
		IComponent textPassword = new PasswordBox("密码框");
		IComponent checkBoxRem = new CheckBox("复选框");
		IComponent labelRem = new Label("记住用户名");
		IComponent linkLabelFgtPass = new LinkLabel("忘记密码");
		
		windowForm.add(picture);
		windowForm.add(buttonLogin);
		windowForm.add(buttonRegist);
		windowForm.add(frame);
		frame.add(labelUserName);
		frame.add(textUserName);
		frame.add(labelPassword);
		frame.add(textPassword);
		frame.add(checkBoxRem);
		frame.add(labelRem);
		frame.add(linkLabelFgtPass);
		
		windowForm.print();
		
	}
	
}
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