华南理工大学Java语言程序设计课堂作业复习资料.docx

1、华南理工大学Java语言程序设计课堂作业复习资料华南理工大学Java语言程序设计课堂作业答案homework01 2011-02-21 13:59 1. 编写一个类(控制台), 输入你的名字, 回车后, 向屏幕输出信息欢迎你, *类似字样 2. 使用命令行模式编译,执行该程序, 将class文件指定输出到class目录 3. 给类添加 move(), turnLeft(), pickPeeper(), putPeeper() 等方法, 并在Main中调用显示相关信息 4. 给类和各方法添加注释, 并使用javadoc指令输出代码文档 Homework01 1. 编写一个类(控制台), 输入你的

2、名字, 回车后, 向屏幕输出信息欢迎你, *类似字样; () 2. 使用命令行模式编译,执行该程序, 将class文件指定输出到class目录; (现class文件夹在D:/目录下，控制台命令输入：javac -d D:class ) 3. 给类添加 move(), turnLeft(), pickPeeper(), putPeeper() 等方法, 并在Main中调用显示相关信息; 4. 给类和各方法添加注释, 并使用javadoc指令输出代码文档. (现新建doc文件夹在D:下以存储文档，控制台输入：javadoc -d D:doc ) homework02 2011-02-27 22:3

3、2 修路工: 请使用分附件中的空白项目，装载 sample03_holes_ 背景，修缮1st Street。 /* * File: * - * The SampleKarel subclass as it appears here does nothing. */ import *; /* * Name: * Section Leader: */ public class SampleKarel extends SuperKarel int count = 0; public void run() / You fill in this part while(count if (frontIs

4、Blocked() | rightIsClear() changeDirection(); move(); public void changeDirection() if (rightIsClear() turnRight(); else if (leftIsBlocked() if (rightIsBlocked() turnRight(); turnRight(); turnRight(); if (rightIsBlocked() turnLeft(); public static void main(String args) String newArgs = new String +

5、 1; (args, 0, newArgs, 0, ); public void judgeAndPick() if (beepersPresent() pickBeeper(); count+; newArgs = public String className() return ()1.getCanonicalName(); .className(); (newArgs); homework03 2011-03-07 16:07 使用之前的空白项目，装载*collect* .w 背景，收集全部的Beeper. /* * File: * - * The SampleKarel subclas

6、s as it appears here does nothing. */ import *; public class CollectAllBeepers extends SuperKarel /* * Through the maze* author 黄泽津*/ public void run() collect(); while(frontIsBlocked()&!leftIsBlocked()if(facingEast() turnLeft();move(); turnLeft(); collect(); if(facingWest() turnRight(); move(); tur

7、nRight();collect(); private void collect() while(beepersPresent()pickBeeper(); if(frontIsBlocked() return; elsemove(); collect(); public static void main(String args) String newArgs = new String + 1; (args, 0, newArgs, 0, );newArgs = public String className() return ()1.getCanonicalName(); .classNam

8、e(); (newArgs); homework04 迷宫收集 2011-03-13 21:47 创建迷宫world并放置一定的Beeper，装载该World后，收集全部的Beeper, 发送时请携带该world地图 int count = 0; public void run() /You fill in this part while(count judgeAndPick(); if (frontIsBlocked() | rightIsClear() changeDirection(); move(); public void changeDirection() if (rightIsC

9、lear() turnRight(); else if (leftIsBlocked() turnLeft(); turnLeft(); public void judgeAndPick() if (beepersPresent() pickBeeper(); count+; homework05 迷宫收集 2011-03-26 21:54 1. 从文件中构造二维世界, 文件为文本模式文件, 字符0 1组成 2. 构造该世界最下方地平面处的路面曲线, 以简单直观的方式在文本中打印, 路面可用*表示 3. 可将Ship, Person的行进路线以以简单直观的方式在各自独立的文本中打印, 行进路线

10、可用*表示 /* * */ package map; import *; import *; /* * author guhonglueying * */ / map生成方法之从文件中读取 public class extends SubMap catch (IOException e) (); charArr = new char(); for (int i = - 1; i -1; i-) charArri = (); try fr = new (s0); BufferedReader bw = new BufferedReader(fr); while (str = () != null

11、) (); / 重写父类create方法,用于从文件中读取新地图 public void create(String. s) String str = null; Stack stk = new Stack(); /* * */ package map; /* * author guhonglueying * */ / map生成方法之程序中定义map public class SimpleMap extends SubMap / 重写父类create方法,用来从程序中创建新地图 /* * */ package map; charArr = new char 0, 0, 1, 1, 1, 0,

12、 0, 0 , 1, 0, 0, 0, 0, 0, 1, 0 ,; 0, 0, 0, 1, 1, 0, 1, 0 , 0, 1, 0, 0, 0, 0, 0, 0 , 0, 1, 0, 1, 0, 1, 0, 0 , 0, 0, 0, 1, 0, 0, 0, 1 , 1, 1, 0, 0, 0, 1, 0, 1 , 1, 1, 1, 1, 1, 1, 0, 0 public void create(String. s) /* * author guhonglueying * */ / 生成map的抽象类，用来定义map的一些public属性和方法 public abstract class S

13、ubMap /* * */ package map; public void setCol(int col) = col; int row; int col; char charArr; public void setRow(int row) = row; public int getRow() return row; public int getCol() return col; / 抽象方法，在子类中实现新地图生成的不同实现 public abstract void create(String. s); public char getMap() = ; = charArr0.length;

14、 return charArr; import *; import *; /* * author guhonglueying * */ / map生成方法之从标准输入流获取 public class SystemInMap extends SubMap InputStreamReader isr = new InputStreamReader(); BufferedReader bw = new BufferedReader(isr);(请用以下字符输入一方形地图：n1-墙，0-路，-入口，#-出口n每次输入一行回车，输入E结束 while (str = () != null) if ( br

15、eak; (); / 重写父类create方法，用于从命令操作符中读取新地图 public void create(String. s) String str = null; Stack stk = new Stack(); try catch (IOException e) (); charArr = new char(); for (int i = - 1; i -1; i-) charArri = (); /* * */ package objectmovable; import util.*; /* * author guhonglueying * */ / 实现person的走迷宫过

16、程 public class Person extends SubObjectMovable public void Maze(char ch) ( h = new Helper(ch); (); (, 2); /* * */ package objectmovable; import util.*; /* * author guhonglueying * */ / 实现ship的走迷宫过程 public class Ship extends SubObjectMovable public void Maze(char ch) (/* * */ package util; /* * autho

17、r guhonglueying * */ public class Node public Node(int x, int y) = x; = y; public int getX() return x; private int x; private int y; public Node() public void setX(int x) = x; public int getY() return y; public void setY(int y) public boolean equals(Object o) if (!(o instanceof Node) = y; return fal

18、se; Node n = (Node) o; return = x & = y; public String toString() return x + /* * */ package test; import map.*; import objectmovable.*; /* * author guhonglueying * */ public class TestMaze /* * param args */ / 主函数，程序入口 public static void main(String args) /多态实现：三种方式创建迷宫 SubMap sm = new SimpleMap();

19、 (); char c = (); /多态实现不同物体的走迷宫过程 SubObjectMovable iom = new Ship(); (c); homework07 文件处理 2011-04-08 22:19 1. 读文件, 添加或去掉行号后写回 2. 统计一个文件中的词个数(请注意中文) package sample; import *; public class AddRowNum / / / / / / / / / / (return; try /* 开启两个文件, 分别读写 */ BufferedReader reader = new BufferedReader(new ( Bu

20、fferedWriter writer = new BufferedWriter( new (/* 首先取得总行数, 然后逐行添加写回 */ int nRowNum = 0; String strOneLine = null; while () != null) nRowNum+; public static void main(String args) (); String formator = (nRowNum = 0; reader = new BufferedReader( new (while (strOneLine = () != null) ( %sn+nRowNum, strO

21、neLine); package sample; import *; public class CountWords public static void main(String args) String = try BufferedReader reader = new BufferedReader(new (); int NumberCount = 0; int LetterCount = 0; int ChineseCharacterCount = 0; int a = -1; (new File( (); (); new File(new File( catch ( e) (找不到指定

22、文件 catch (IOException e) (文件读写错误 Character c; while (a = () != -1) c = (char) a; if (c) NumberCount+; else if (一 ChineseCharacterCount+; else if (c) LetterCount+; (); (文件共包含：(数字：字母： + LetterCount + 汉字：/* 林启敏 */ (); reader = new BufferedReader(new (boolean isWordStart = false; int count = 0; char one

23、Char = new char1; while (oneChar) != -1) if (oneChar0 = . | oneChar0 = , | oneChar0 = ) if(isWordStart) isWordStart = false; count+; else isWordStart = true; ( catch ( e) (找不到指定文件 catch (IOException e) (文件读写错误homework08 html 2011-04-11 16:24 1. 使用Html实现登录页面, 需提供身份证号码, Email等相关信息 2. 在提交时, 使用JavaScrip

24、t做校验, 如果失败, 则提示注册者. 用户注册页面 用户注册页面 注册成功页面 .oneColFixCtrHdr #container width: 780px;background: #FFFFFF; margin: 0 auto; border: 1px solid #000000; text-align: left; .oneColFixCtrHdr #header background: #DDDDDD; padding: 0 10px 0 20px; .oneColFixCtrHdr #header h1 margin: 0; padding: 10px 0; .oneColFix

25、CtrHdr #mainContent padding: 0 20px; background: #FFFFFF; font-weight: bold; .oneColFixCtrHdr #footer padding: 0 10px; background:#DDDDDD; .oneColFixCtrHdr #footer p margin: 0; padding: 10px 0; - 注册成功！ 下面自动转入首页. homework09 Swing 2011-04-17 22:26 1. 使用Swing实现之前Html登录页面, 需提供身份证号码, Email等相关信息 2. 同样在提交时

26、, 程序内部做校验, 失败则提示下相关信息. package homework09; import *; import *; import *; import *; import *; public class LoginWindow public static void main(String args) LoginFrame login = new LoginFrame();(用户注册界面(480,360); (null); (_ON_CLOSE);(true); class LoginFrame extends JFrame public LoginFrame() Font defaul

27、tFont = new Font(微软雅黑Container loginCon = getContentPane();LoginPanel panel = new LoginPanel(); TitledBorder inputPanelBorder = new TitledBorder(基本资料(defaultFont); (inputPanelBorder);(panel); class LoginPanel extends JPanel JTextField nameField,phoneField,emailField,idCardField; JPasswordField passField,repassField; JButton submit,reset; public LoginPanel() BorderLayout layout = new BorderLayout();