Java与网络程序设计考核要求.doc

姓名： 学号： 班级：天津师范大学考核要求2011 2012 学年第一学期期末考核要求科目：Java与网络程序设计 学院： 计信学院专业：计算机科学与技术题号一二三四五总分分数 2011-2012（1）的“Java与网络程序设计”课程为专业选修课，鉴于课程特点，“Java与网络程序设计”课程采用开卷实践考核方式，选修此课程的同学应于第17教学周完成实践考核题目，并上交程序成品、完成答辩。实践考核题目独立完成Project1、Project2、Project3和Project4四个项目。Project 1（1）按照如下UML图要求实现GeometricObject类和Circle类：（2）修改Circle类，使其实现Comparable接口并覆盖Object类的equals方法，其中实现Comparable接口的Circle类能根据radius数值比较大小，覆盖的equals方法能根据radius数值判定Circle对象是否相等；（3）编写测试类，创建半径为5和10的Circle对象，显示equals方法和compareTo方法调用结果。import java.util.Date;/编写测试类，创建半径为5和10的Circle对象，显示equals方法和compareTo方法调用结果。public class Testpublic static void main(String args)Circle c1=new Circle(5);Circle c2=new Circle(10);System.out.println(c1.equals(c2);System.out.println(pareTo(c2);class GeometricObject private String color;private boolean filled;private Date dateCreated;GeometricObject()GeometricObject(String color,boolean filled)this.color=color;this.filled=filled;public String getColor() return color;public void setColor(String color) this.color = color;public boolean isFilled() return filled;public void setFilled(boolean filled) this.filled = filled;public Date getDateCreated() return dateCreated;public String toString()return color;/?public double getArea()return 0; /public double getPerimeter()return 0;/class Circle extends GeometricObject implements Comparableprivate double radius;Circle()Circle(double radius)this.radius=radius;Circle(double radius,String color,boolean filled)this.radius=radius;this.setColor(color);this.setFilled(filled);public double getRadius() return radius;public void setRadius(double radius) this.radius = radius;public double getDiameter()return this.radius*2;/直径/实现Comparable接口的Circle类能根据radius数值比较大小public int compareTo(Object o)if(getRadius()(Circle)o).getRadius()return 1;else if(getRadius()(Circle)o).getRadius()return -1;elsereturn 0;/覆盖的equals方法能根据radius数值判定Circle对象是否相等；public boolean equals(Circle c)if(getRadius()=c.getRadius()return true;elsereturn false;Project 2:编写程序显示一个饼图，使用饼图显示作业、平时测验、期中考试和期末考试占总成绩的百分比。假设作业占20%用红色显示，平时测验占10%用蓝色显示，期中考试占30%用绿色表示，期末考试占40%用橙色表示。import javax.swing .*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Scanner;public class Test public static void main(String args)ZiFrame frame=new ZiFrame();frame.setTitle(饼图);/面板标题frame.setSize(300,200);/面板大小frame.setResizable(false);/不能改变面板大小frame.setLocationRelativeTo(null);/显示器上居中显示frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);/关闭操作frame.setVisible(true);class ZiFrame extends JFrameZiFrame()setLayout(new BorderLayout();add(new NewJPanel(),BorderLayout.CENTER);class NewJPanel extends JPanelprotected void paintComponent(Graphics g)super.paintComponent(g);int xCenter=getWidth()/2;int yCenter=getHeight()/2;int radius=(int)(Math.min(getWidth(), getHeight()*0.4);int x=xCenter-radius;int y=yCenter-radius;g.setColor(Color.red);g.fillArc(x, y, 2*radius, 2*radius, 0,72);g.setColor(Color.blue);g.fillArc(x, y, 2*radius, 2*radius,72, 36);g.setColor(Color.green);g.fillArc(x, y, 2*radius, 2*radius, 98,108);g.setColor(Color.white);g.fillArc(x, y, 2*radius, 2*radius, 206,154);g.setColor(Color.black);g.drawString(Projects-20%, 3*radius,40);g.drawString(Quizzes-10%, 2*radius,10);g.drawString(Midterms-40%, 0,radius);g.drawString(Final-40%, 2*radius,140);Project 3: 编写一个程序，计算投资值在给定利率以及给定年数下的未来值。计算的公式如下所示：使用文本域显示利率、投资总额和年数。当用户点击Calculate按钮时，在文本域显示未来的总额。/* 编写一个程序，计算投资值在给定利率以及给定年数下的未来值。计算的公式如下所示：使用文本域显示利率、投资总额和年数。当用户点击Calculate按钮时，在文本域显示未来的总额。 */import java.awt.Dimension;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JTextField;public class Test public static void main(String args)ZiFrame frame=new ZiFrame();frame.setTitle(投资计算器);/面板标题frame.setSize(300,200);/面板大小frame.setResizable(false);/不能改变面板大小frame.setLocationRelativeTo(null);/显示器上居中显示frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);/关闭操作frame.setVisible(true);/显示面板class ZiFrame extends JFrameprivate JButton btn=new JButton(Calculate);private JTextField tfd1=new JTextField(8),tfd2=new JTextField(8),tfd3=new JTextField(8),tfd4=new JTextField(8);/private double investmentAmount,years,annualInterestRate;ZiFrame()setLayout(new GridLayout(5,2,5,5);add(new JLabel(InvestmentAmount:);add(tfd1);add(new JLabel(Years:);add(tfd2);add(new JLabel(Annual Interest Rate:);add(tfd3);add(new JLabel(Future value:);add(tfd4);add(new JLabel();add(btn);btn.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)tfd4.setText(+Double.parseDouble(tfd1.getText()*Math.pow(1+Double.parseDouble(tfd3.getText()/1200),Double.parseDouble(tfd2.getText()*12););Project 4:编写一个程序，模拟交通信号灯。程序让用户从红、黄、绿三色灯中选择一种。当选择一个单选按钮后，相应的灯被打开，每次只能亮一种灯。程序开始时所有的灯都不亮。import java.awt.BorderLayout;import java.awt.Color;import java.awt.Graphics;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.ButtonGroup;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JRadioButton;public class Test public static void main(String args)RadioButtonDemo frame=new RadioButtonDemo();frame.setTitle(信号灯);/面板标题frame.setSize(300,200);/面板大小frame.setResizable(false);/不能改变面板大小frame.setLocationRelativeTo(null);/显示器上居中显示frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);/关闭操作frame.setVisible(true);class RadioButtonDemo extends JFrameprivate JRadioButton jrbRed,jrbYellow,jrbGreen;RadioButtonDemo()BorderLayout blay=new BorderLayout();setLayout(blay);JPanel jpRadioButtons=new JPanel();final StartJPanel jpRadioLamps=new StartJPanel();jpRadioButtons.setLayout(new GridLayout(1,3);jpRadioButtons.add(jrbRed=new JRadioButton(Red);jpRadioButtons.add(jrbYellow=new JRadioButton(Yellow);jpRadioButtons.add(jrbGreen=new JRadioButton(Green);add(jpRadioLamps,BorderLayout.CENTER);add(jpRadioButtons,BorderLayout.SOUTH);ButtonGroup group=new ButtonGroup();group.add(jrbRed);group.add(jrbYellow);group.add(jrbGreen);/设置热键jrbRed.setMnemonic(R);jrbYellow.setMnemonic(Y);jrbGreen.setMnemonic(G);jrbRed.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)jpRadioLamps.i=1;repaint(););jrbYellow.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)jpRadioLamps.i=2;repaint(););jrbGreen.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)jpRadioLamps.i=3;repaint(););class StartJPanel extends JPanelpublic int i=0;protected void paintComponent(Graphics g)super.paintComponent(g);int xCenter=getWidth()/2;int yCenter=getHeight()/2;int radius=(int)(Math.min(getWidth(), getHeight()*0.4);int x=xCenter-radius;int y=yCenter-radius;if(i=0)g.drawRect(xCenter, y,40, 120);g.drawOval(xCenter+2, y+2, 35, 35);g.drawOval(xCenter+2, y+42, 35, 35);g.drawOval(xCenter+2, y+82, 35, 35);if(i=1)g.drawRect(xCenter, y,40, 120);g.setColor(Color.red);g.fillOval(xCenter+2, y+2, 35, 35);g.setColor(Color.black);g.drawOv