架构师训练营第三周 - 作业
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。
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
代码如下：
package com.example;
public abstract class Component { private String name;
public Component(String name) { this.name = name; }
public void print () { System.out.println(String.format("%s(%s)", this.getClass().getSimpleName(), name)); }
}
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package com.example;
import java.util.ArrayList;import java.util.List;
public abstract class Container extends Component{
private List<Component> children = new ArrayList<Component>();
public Container(String name) { super(name); }
public void addChild(Component c) { children.add(c); }
public void print () { super.print(); for (Component child : children) { child.print(); } }}
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package com.example;
public class WindowForm extends Container {
public WindowForm(String name) { super(name); }
}
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package com.example;
public class Frame extends Container {
public Frame(String name) { super(name); }}
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package com.example;
public class Button extends Component {
public Button (String name) { super(name); }}
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package com.example;
public class CheckBox extends Component {
public CheckBox(String name) { super(name); }}
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package com.example;
public class Label extends Component{
public Label(String name) { super(name); }}
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package com.example;
public class LinkLabel extends Component {
public LinkLabel(String name) { super(name); }}
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package com.example;
public class PasswordBox extends Component {
public PasswordBox(String name) { super(name); }}
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package com.example;
public class Picture extends Component {
public Picture(String name) { super(name); }}
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package com.example;
public class TextBox extends Component {
public TextBox(String name) { super(name); }}
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package com.example;
public class Main {
public static void main(String[] args) { // create WindowForm WindowForm windowForm = new WindowForm("WINDOW窗口");
windowForm.addChild(new Picture("LOGO图片")); windowForm.addChild(new Button("登录")); windowForm.addChild(new Button("注册"));
// create Frame Frame frame = new Frame("FRAME1"); frame.addChild(new Label("用户名")); frame.addChild(new TextBox("文本框")); frame.addChild(new Label("密码")); frame.addChild(new PasswordBox("密码框")); frame.addChild(new CheckBox("记住用户名")); frame.addChild(new LinkLabel("忘记密码"));
windowForm.addChild(frame);
// print windowForm.print(); }}
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运行结果：
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发布于: 2020 年 06 月 22 日阅读数: 54
Eric
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给写代码的人写代码 2017.10.17 加入
Clojure
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