架构师训练营第三周课后作业

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发布于: 2020 年 06 月 22 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。
饿汉式单例模式的简单实现
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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。
abstract class Component {
	public abstract void add(Component c);
	public abstract void remove(Component c);
	public abstract Component getChild(int i);
	public abstract void printOpt();
}
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class WindowForm extends Component {
	private ArrayList<Component> componentList = new ArrayList<Component>();
	private String name;
	public WindowForm(String name) {
		this.name = name;
	}
	public void add(Component c) {
		componentList.add(c);
	}
	public void remove(Component c) {
		componentList.remove(c);
	}
	public Component getChild(int i) {
		return (Component)componentList.get(i);
	}
	public void printOpt() {
		System.out.println("print Winform("+name+")");
		for(Object obj : componentList) {
		((Component)obj).printOpt();
		}
	}
}
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class Frame extends Component {
	private ArrayList<Component> componentList = new ArrayList<Component>();
	private String name;
	public Frame(String name) {
		this.name = name;
	}
	public void add(Component c) {
		componentList.add(c);
	}
	public void remove(Component c) {
		componentList.remove(c);
	}
	public Component getChild(int i) {
		return (Component)componentList.get(i);
	}
	public void printOpt() {
		System.out.println("print Frame("+name+")");
		for(Object obj : componentList) {
		((Component)obj).printOpt();
		}
	}
}
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class Picture extends Component {
	private String name;
	public Picture(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print Picture("+name+")");
	}
}
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class Button extends Component {
	private String name;
	public Button(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print Button("+name+")");
	}
}
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class Label extends Component {
	private String name;
	public Label(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print Label("+name+")");
	}
}
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class CheckBox extends Component {
	private String name;
	public CheckBox(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print CheckBox("+name+")");
	}
}
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class TextBox extends Component {
	private String name;
	public TextBox(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print TextBox("+name+")");
	}
}
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class LinkLabel extends Component {
	private String name;
	public LinkLabel(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print LinkLabel("+name+")");
	}
}
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class PassWordBox extends Component {
	private String name;
	public PassWordBox(String name) {
		this.name = name;
	}
	public void add(Component c) {
		System.out.println("不支持");
	}
	public void remove(Component c) {
		System.out.println("不支持");
	}
	public Component getChild(int i) {
		System.out.println("不支持");
	}
	public void printOpt() {
		System.out.println("print PassWordBox("+name+")");
	}
}
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class Client {
	public static void main(String [] args) {
  	Component comp1,comp2,comp3,comp4,comp5,comp6,comp7,comp8,comp9,comp10,comp11,comp12;
    comp1 = new WindowForm("WINDOW窗口")
    comp2 = new Frame("FRAME1");
    comp3 = new Picture("LOGO图片");
    comp4 = new Button("登录");
    comp5 = new Button("注册");
    comp6 = new Label("用户名");
    comp7 = new TextBox("文本框");
    comp8 = new Label("密码");
    comp9 = new PassWordBox("密码框");
    comp10 = new CheckBox("复选框");
    comp11 = new TextBox("记住用户名");
    comp12 = new LinkLabel("忘记密码");
    
    comp2.add(comp6);
    comp2.add(comp7);
    comp2.add(comp8);
    comp2.add(comp9);
    comp2.add(comp10);
    comp2.add(comp11);
    comp2.add(comp12);
    
    comp1.add(comp3);
    comp1.add(comp4);
    comp1.add(comp5);
    comp1.add(comp2);
    
    comp1.printOpt();
    
  }
}
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