第三周课后练习 - 作业 1

public class Window {
	protected String name;		public Window(String name) {		this.name = name;	}		public void print() {		System.out.printf("print %s(%s)\n", this.getClass().getName(), name);	}}

import java.util.ArrayList;
public class Frame extends Window {
	protected ArrayList<Window> printList;
	public Frame(String name) {		super(name);	}		public void add(Window w) {		if (printList == null) {			printList = new ArrayList<Window>();		}		printList.add(w);	}		public void print() {		super.print();		printList();	}		protected void printList() {		for (int i = 0; i < printList.size(); i++) {			printList.get(i).print();		}	}}

public class Button extends Window {	public Button(String name) {		super(name);	}}
public class CheckBox extends Window {	public CheckBox(String name) {		super(name);	}}
public class Lable extends Window {	public Lable(String name) {		super(name);	}}
public class LinkLable extends Window {	public LinkLable(String name) {		super(name);	}}
public class PasswordBox extends Window {
	public PasswordBox(String name) {		super(name);	}}
public class Picture extends Window {	public Picture(String name) {		super(name);	}}
public class TextBox extends Window {	public TextBox(String name) {		super(name);	}}
public class WinForm extends Frame {	public WinForm(String name) {		super(name);	}}
public class WindowsPrinter {
    public static void main(String args[]) {    	    	Lable lableUser = new Lable("用户名");    	TextBox tb = new TextBox("文本框");    	Lable lablePwd = new Lable("密码");    	PasswordBox pwdBox = new PasswordBox("密码框");    	CheckBox checkBox = new CheckBox("复选框");    	TextBox textBox = new TextBox("记住用户名");    	LinkLable linkLable = new LinkLable("忘记密码");    	    	Frame f = new Frame("FRAME1");    	f.add(lableUser);    	f.add(tb);    	f.add(lablePwd);    	f.add(pwdBox);    	f.add(checkBox);    	f.add(textBox);    	f.add(linkLable);    	    	Button bLogin = new Button("登录");    	Button bReg = new Button("注册");    	Picture pLog = new Picture("LOGO图片");    	    	WinForm winFrom = new WinForm("WINDOW窗口");    	winFrom.add(pLog);    	winFrom.add(bLogin);    	winFrom.add(bReg);    	winFrom.add(f);    	        winFrom.print();     } }