最新JAVA课程设计报告.doc
精品资料JAVA课程设计报告.Java面向对象程序设计课程设计报告（2013 2014学年 第 一 学期）专 业： 软件服务 班 级： 二班 姓 名： 学 号： 1207132208 指导教师： 成 绩： 计算机与信息工程学院2014年1月17日 目录目的本课程是软件工程、信息技术外包专业所开设的一门重要实践课程，主要要求学生掌握Java语言和面向对象在实践中的应用。本课程设计的目的是使学生在理论学习的基础上，动手编写程序，通过应用所学习的知识，来解决一些实际的问题。在此基础上，真正理解和掌握Java面向对象程序设计的相关理论，具备程序设计的能力。条状图一、设计内容设计实现一个应用程序，创建一个条状图，用于查看一组JAVA成绩的分布情况。程序初始化一组0-100的整数，根据整数值进行分类，通过调用fillRect方法绘图。二、方案设计与论证1.随机产生10个整数，范围在0到100之间。2.将这十个数分5种水平累加。累加的数值大小的十倍即为条状图的长度。3.调用fillRect方法绘图。三、程序运行结果（截图）四、心得体会1.在规定条状图大小位置较麻烦。2.在BarChart类中一直出现不匹配的问题。解决方法：将for循环移入paintComponent（）方法中。3. 为了代码的严谨性，在BarChart类中增添了构造方法，在构造方法中初始化了背景色和面板大小，规定了条状图的大小。五、参考资料与致谢参考Java书本4.6图形对象中的例题4.5的格式。六、源程序1.Bar.javaimport javax.swing.JFrame;public class Bar /- / Creates the main program frame. /- public static void main (String args) JFrame frame = new JFrame ("Bar Chart"); frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); BarChart panel = new BarChart(); frame.getContentPane().add(panel); frame.pack(); frame.setVisible(true); 2.BarChart.javaimport javax.swing.JPanel;import java.awt.*;import java.util.Random;public class BarChart extends JPanel Random generator = new Random();int score;int l1 ; int l2 ; int l3 ; int l4 ; int l5 ;public BarChart() setBackground (Color.cyan);setPreferredSize (new Dimension(400, 300); public void paintComponent (Graphics page)super.paintComponent(page); for (int i = 0 ; i <10 ; i+) score = generator.nextInt(101); if(score>= 91 && score<=100) l1+; if(score>= 81 && score<=90) l2+; if(score>= 71 && score<=80) l3+; if(score>= 60 && score<=70) l4+; if(score>= 0 && score<=59) l5+; page.setColor(Color.lightGray);page.fillRect(150,50,155,110);page.setColor(Color.black);page.drawLine(180, 50, 180, 160);page.drawLine(210, 50, 210, 160);page.drawLine(240, 50, 240, 160);page.drawLine(270, 50, 270, 160);page.drawString("0", 150, 170);page.drawString("2", 180, 170);page.drawString("4", 210, 170);page.drawString("6", 240, 170);page.drawString("8", 270, 170);page.drawString("10", 300, 170);page.setColor(Color.magenta);page.fillRect(150,60,l1*10,10);page.setColor(Color.magenta);page.fillRect(150,80,l2*10,10);page.setColor(Color.magenta);page.fillRect(150,100,l3*10,10);page.setColor(Color.magenta);page.fillRect(150,120,l4*10,10);page.setColor(Color.magenta);page.fillRect(150,140,l5*10,10);page.setColor(Color.black);page.drawString("91到100", 100, 67);page.drawString("81到90", 100, 87);page.drawString("71到80", 100, 108);page.drawString("60到70", 100, 130);page.drawString("0到59", 100, 155);虐待鼠标一、设计内容鼠标是一个易损器件，损坏的原因往往是因为过量的点击。请参考第四章的例题4.10设计一款程序测试在一分钟内你能点击鼠标多少次，找你的同学来试试看看谁的食指更灵活。二、方案设计与论证1.建一个界面（用框架）2.建一个面板介入到框架中 面板中添加按钮，标签（显示时间和点击鼠标次数） 面板中添加监听器（监听点击鼠标次数和计时）提示：时间差计算方法Calendar begin=Calendar.getInstance(); /获取起点时间Calendar end = Calendar.getInstance(); /获取终点时间long between=end.getTimeInMillis() - begin.getTimeInMillis()/1000; /除以1000是为了将毫秒转换成秒三、程序运行结果（截图）四、心得体会1.本题需要两部分任务，倒计时Timber的调用，和记录点击鼠标的次数。2.刚开始对题目所要用到的方法不太清楚，结合书本上的内容和上网查阅相关资料获得。3.原本新建一个类，用来进行计时问题，但是程序出现错误。因为对API不是很了解，上网查阅了API关于Calendar类及getInstance()方法和getTimeInMillis()方法的用法，运用监听器方法实现倒计时。 五、参考资料与致谢参考java书本上第四章的例题4.10，按钮点击次数。网上获取计时器 Calendar类的用法。六、源程序 1. Push.java/*/ PushCounter.java Authors: Lewis/Loftus/ Demonstrates a graphical user interface and an event listener./*import javax.swing.JFrame;public class Push /- / Creates the main program frame. /- public static void main (String args) JFrame frame = new JFrame ("Push Counter"); frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); frame.getContentPane().add(new PushPanel(); frame.pack(); frame.setVisible(true); 2. PushPanel.java/*/ PushCounterPanel.java Authors: Lewis/Loftus/ Demonstrates a graphical user interface and an event listener./*import java.awt.*;import java.awt.event.*;import javax.swing.*;public class PushPanel extends JPanel private int count; private JButton push; private JLabel label; private JLabel label1; private long between; java.util.Calendar begin=java.util.Calendar.getInstance(); /获取起点时间 /- / Constructor: Sets up the GUI. /- public PushPanel () count = 0; push = new JButton ("Push!"); push.addActionListener (new ButtonListener(); label = new JLabel ("Pushes: " + count); label1 = new JLabel ("Times: " + between); add (push); add (label); add (label1); setPreferredSize (new Dimension(300, 50); setBackground (Color.cyan); /* / Represents a listener for button push (action) events. /* private class ButtonListener implements ActionListener /- / Updates the counter and label when the button is pushed. /- public void actionPerformed (ActionEvent event) java.util.Calendar end=java.util.Calendar.getInstance(); /获取终点时间 between=(end.getTimeInMillis() - begin.getTimeInMillis()/1000; /除以1000是为了将毫秒转换成秒 if(event.getSource() = push )/获取点击鼠标的信息 count+; label.setText("Pushes: " + count); if (between <= 60)/时间设定为1分钟即60秒 between +; label1.setText("Times: " + between); else System.out.println("Time is over!"); 挂钟一、设计内容设计一款如下的挂钟提示：Calendar calendar=Calendar.getInstance(); /获取当前时间int year=calendar.get(Calendar.YEAR); /获取年int month=calendar.get(Calendar.MONTH); /获取月int day=calendar.get(Calendar.DATE); /获取日int weekDay=calendar.get(Calendar.DAY_OF_WEEK);int am_pm=calendar.get(Calendar.AM_PM);int hour=calendar.get(Calendar.HOUR_OF_DAY); /获取小时int minute=calendar.get(Calendar.MINUTE); /获取分钟int second=calendar.get(Calendar.SECOND); /获取秒二、方案设计与论证运用定时器Timer设计运行时钟运用Graphics绘制时钟图像及表针三、程序运行结果（截图）四、心得体会1.起初不懂画表针如何得到坐标，查阅相关资料得代码如下：sx=195+95*Math.sin(6*second*Math.PI)/180); sy=195-95*Math.cos(6*second*Math.PI)/180); mx=195+80*Math.sin(6*minute*Math.PI)/180+(6*second*Math.PI)/180/60); my=195-80*Math.cos(6*minute*Math.PI)/180+(6*second*Math.PI)/180/60);2.画表针方法如下：g.setColor(Color.black); g.drawLine(195, 195, (int)sx, (int)sy); g.drawLine(195, 195, (int)mx, (int)my); g.drawLine(195, 195, (int)hx, (int)hy);五、参考资料与致谢参考Java书上9.8定时器类的例题9.15六、源程序1.clock.javaimport java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.JFrame;public class clock public static void main(String args)JFrame frame=new JFrame("clock");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.getContentPane().add(new clockPanel();frame.pack();frame.setVisible(true);2.clockPanel.javaimport java.awt.*;import java.awt.event.*;import javax.swing.*;import java.util.Calendar;public class clockPanel extends JPanelprivate final double PI=3.14;private int DELAY=1000;private Timer timer;private Calendar calendar;private double sx,sy,mx,my,hx,hy;private int second,minute,hour;private int s;public clockPanel()timer=new Timer(DELAY,new clockListener();setPreferredSize(new Dimension(300,300);setBackground(Color.white);timer.start();public void paint(Graphics g)super.paint(g); g.setColor(Color.gray); g.fillOval(75, 75, 240, 240); g.setColor(Color.yellow); g.fillOval(100, 100, 190, 190); g.setColor(Color.black); g.drawOval(75, 75, 240, 240); g.setColor(Color.black); g.drawOval(100, 100, 190, 190); g.setColor(Color.black); g.fillOval(190, 190, 10, 10); calendar=Calendar.getInstance(); second=calendar.get(Calendar.SECOND); minute=calendar.get(Calendar.MINUTE); hour=calendar.get(Calendar.HOUR_OF_DAY); g.setColor(Color.black); g.setFont(new Font("TimesRoman",Font.PLAIN,20); for(int i=1;i<13;i+) int X=(int)(195+100*Math.sin(6*i*5*Math.PI)/180); int Y=(int)(195-100*Math.cos(6*i*5*Math.PI)/180); if(i<4) g.drawString(""+i, X-2,Y+3); if(i<7&&i>=4)g.drawString(""+i, X-6,Y+16); if(i>=7&&i<10)g.drawString(""+i, X-10,Y+12); if(i>=10&&i<=12)g.drawString(""+i, X-17,Y+3); for(int a=1;a<13;a+) int X=(int)(195+95*Math.sin(6*a*5*Math.PI)/180); int Y=(int)(195-95*Math.cos(6*a*5*Math.PI)/180); g.setColor(Color.black); g.fillOval(X-2,Y-2,4,4); g.setColor(Color.black); g.drawLine(195, 195, (int)sx, (int)sy); g.setColor(Color.black); g.drawLine(195, 195, (int)mx, (int)my); g.setColor(Color.black); g.drawLine(195, 195, (int)hx, (int)hy);public class clockListener implements ActionListenerpublic void actionPerformed(ActionEvent event) sx=195+95*Math.sin(6*second*Math.PI)/180); sy=195-95*Math.cos(6*second*Math.PI)/180); mx=195+80*Math.sin(6*minute*Math.PI)/180+(6*second*Math.PI)/180/60); my=195-80*Math.cos(6*minute*Math.PI)/180+(6*second*Math.PI)/180/60); if(hour<=12) hx=195+65*Math.sin(30*hour*Math.PI)/180+(6*minute*Math.PI)/180/12); hy=195-65*Math.cos(30*hour*Math.PI)/180+(6*minute*Math.PI)/180/12); if(hour>12) hx=195+65*Math.sin(30*(hour-12)*Math.PI)/180+(6*minute*Math.PI)/180/12); hy=195-65*Math.cos(30*(hour-12)*Math.PI)/180+(6*minute*Math.PI)/180/12); repaint(); 绘图程序一、设计内容编写Java Application程序，使它在GUI界面中通过响应功能按钮的点击事件绘制各种简单的几何图形（矩形、圆形、扇形、多边形和他们的填充效果），并且能够通过接收传递参数控制图形的绘制。二、方案设计与论证1.定义一个Application类来设计一个框架。2.定义4个类分别为Square，Circle，Fan，Polygon以按键的形式在Application类中显示。3.定义Draw类，Square，Circle，Fan，Polygon这四个类通过参数调用Draw类画图。三、程序运行结果（截图）五、参考资料与致谢参考书本4.6图形对象例题4.7 4.8 4.9，7.11布局管理器例题7.18。六、源程序1.Application.javaimport javax.swing.*;public class Application public static void main (String args) JFrame frame = new JFrame ("Application"); frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); JTabbedPane tp = new JTabbedPane(); tp.addTab ("square", new Square(); tp.addTab ("circle", new Circle(); tp.addTab ("fan", new Fan(); tp.addTab ("polygon", new Polygon(); frame.getContentPane().add(tp); frame.pack(); frame.setVisible(true); 2.Square.javaimport java.awt.*;import javax.swing.*;public class Square extends JPanelDraw square; /- / Sets up this panel with two labels. /- public Square() setBackground (Color.cyan); setPreferredSize (new Dimension(300, 200); setBackground (Color.black); square = new Draw(); square.square(45,50,60,30,Color.blue); public void paintComponent (Graphics page) super.paintComponent(page); square.drawSquare(page); 3.Circle.javaimport java.awt.*;import javax.swing.*;public class Circle extends JPanel Draw circle; /- / Sets up this panel with some buttons to show how flow layout / affects their position. /- public Circle () setBackground (Color.cyan); setPreferredSize (new Dimension(300, 200); setBackground (Color.black); circle = new Draw(); circle.circle(45,50,60,60,Color.pink); public void paintComponent (Graphics page) super.paintComponent(page); circle.drawCircle(page); 4.Fan.javaimport java.awt.*;import javax.swing.*;public class Fan extends JPanel Draw fan;/- / Sets up this panel with a button in each area of a border / layout to show how it affects their position, shape, and size. /- public Fan() setBackground (Color.cyan); setPreferredSize (new Dimension(300, 200); setBackground (Color.black); fan = new Draw(); fan.fan(45,50,60,60,0,180,Color.green); public void paintComponent (Graphics page) super.paintComponent(page); fan.drawFan(page); 5.Polygon.javaimport java.awt.*;import javax.swing.*;public class Polygon extends JPanel Draw polygon; /- / Sets up this panel with a button in each area of a border / layout to show how it affects their position, shape, and size. /- public Polygon() s
