3《JAVA语言程序设计(2)》项目设计说明书

无锡科技职业学院《Java语言程序设计(2)》项目设计说明书设计题目：_____________________班级：_____________________学号：_____________________姓名：_____________________指导教师：_____________________完成日期：_____________________软件与服务外包学院制目录一、需求分析┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3二、模块功能说明（概要设计）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅4三、详细设计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅5四、任务进度表┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅6五、测试结果┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅7六、设计小结┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅9七、用户使用说明┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅10八、参考文献┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅10一、模块功能说明（概要设计）二、模块功能说明（概要设计）1.登陆：使用设定好的账号登陆。

界面如下：登陆后的界面：（原本看不到菜单，现在可以显示）2.菜单的设计（如下图）3.“增加”功能，输入数据后，点击“增加”便增加。

下图为查询结果。

4.“修改”功能，如图将“班级”这一栏数据进行修改，再进行查询。

查询成功！5.删除。

将刚刚查询到的结果进行“删除”，再进行查询。

6.生成文档点击“生成文档”后，可在指定路径下查找到指定文件，打开文件可以看到指定内容。

（如下图）完成人签名：三、详细设计import javax.swing.JFrame.*;public class Main{public static void main(String args[]){LL cc=new LL("袁杰100120455",111,111,500,300);}}import javax.swing.*;import java.io.*;import java.util.*;import java.awt.Button;import java.awt.GridLayout;import bel;import java.awt.TextField;import java.awt.event.*;import java.io.BufferedWriter;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.Writer;import java.util.Vector;import static javax.swing.JFrame.*;public class LL extends JFrame implements ActionListener{ Vector StuInf=new Vector();String stu="name:number:class:point:"+"\r\n";StudentInf SI;String xm;String bj;int i,j,xh,cj;static int mid;JMenuBar b;JMenu c;JMenuItem d,e,f,g,h;JLabel prompt1=new JLabel("学生成绩管理系统");JLabel a1=new JLabel("菜单隐藏已解除说明："); JLabel a2=new JLabel("请先添加数据再操作");JLabel a4=new JLabel("填写完数据再添加，按学号"); JLabel a3=new JLabel("来查询，查询完修改或删除"); JLabel prompt2=new JLabel("用户:（初始1）"); JLabel prompt3=new JLabel("密码:（初始1）"); Label prompt4=new Label("班级:");Label prompt5=new Label("成绩:");TextField input1=new TextField(8);TextField input2=new TextField(8);TextField input3=new TextField(8);TextField input4=new TextField(8);Button btn1=new Button("登录");Button btn11=new Button("生成文档(D:/yj.txt)"); String q="1",qq="1";public LL(){};public LL(String a,int b,int c,int d,int e){ init(a);setLocation(b,c);setSize(d,e);setVisible(true);setDefaultCloseOperation(DISPOSE_ON_CLOSE);}void init(String s){setTitle(s);setSize(400,300);setLayout(new GridLayout(6,3));add(new Label());add(prompt1);add(new Label());add(prompt2);add(input1);add(new Label());add(prompt3);add(input2);add(btn1);add(btn11);add(prompt4);add(input3);add(input4);add(btn11);add(prompt5);add(input4);add(a4);add(a1);add(a2);add(a3);b=new JMenuBar();c=new JMenu("菜单");d=new JMenuItem("增加");e=new JMenuItem("查询");f=new JMenuItem("修改");g=new JMenuItem("删除");h=new JMenuItem("关闭");d.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEven t.CTRL_MASK));e.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEven t.CTRL_MASK));f.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEven t.CTRL_MASK));g.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_D,InputEven t.CTRL_MASK));h.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E,InputEven t.CTRL_MASK));prompt4.setVisible(false);prompt5.setVisible(false);input3.setVisible(false);input4.setVisible(false);btn11.setVisible(false);c.setVisible(false);a1.setVisible(false);a2.setVisible(false);a3.setVisible(false);a4.setVisible(false);btn1.addActionListener(this);d.addActionListener(this);e.addActionListener(this);f.addActionListener(this);g.addActionListener(this);btn11.addActionListener(this);c.addMouseListener(new MouseListener(){@Overridepublic void mouseClicked(MouseEvent e){ //TODO Auto-generated method stubb.updateUI();}@Overridepublic void mousePressed(MouseEvent e){ //TODO Auto-generated method stubb.updateUI();}@Overridepublic void mouseReleased(MouseEvent e){ //TODO Auto-generated method stubb.updateUI();}@Overridepublic void mouseEntered(MouseEvent e){//TODO Auto-generated method stubb.updateUI();}@Overridepublic void mouseExited(MouseEvent e){//TODO Auto-generated method stubb.updateUI();}});h.addActionListener(new ActionListener(){@Overridepublic void actionPerformed(ActionEvent e){ //TODO Auto-generated method stubSystem.exit(0);}});c.add(d);c.add(e);c.add(f);c.add(g);c.add(h);b.add(c);setJMenuBar(b);}public void actionPerformed(ActionEvent e){if(e.getActionCommand()=="登录"){String a,b;a=input1.getText();b=input2.getText();input1.setText("");if((a.equals(q)==true)&&(b.equals(qq)==true)){prompt2.setText("姓名:");prompt3.setText("学号:");prompt4.setVisible(true);prompt5.setVisible(true);input3.setVisible(true);input4.setVisible(true);c.setVisible(true);d.setVisible(true);f.setVisible(true);g.setVisible(true);a1.setVisible(true);a2.setVisible(true);a3.setVisible(true);a4.setVisible(true);f.setEnabled(false);g.setEnabled(false);btn1.setVisible(true);btn11.setVisible(true);btn1.setLabel("清除");input1.setText("");input2.setText("");input1.selectAll();}elseinput2.setText("用户名或密码错");}if(e.getActionCommand()=="清除"){input1.setText("");input2.setText("");input3.setText("");input4.setText("");}if(e.getActionCommand()=="增加"){boolean scucss=true;try{XingMing();}catch(EmptyException as){input1.setText("姓名不能为空");scucss=false;}try{xh=Integer.parseInt(input2.getText());}catch(NumberFormatException m){input2.setText("学号为空或格式错");scucss=false;}bj=input3.getText();try{ChengJi();}catch(EmptyException as){cj=-1;}catch(OverException dd){input4.setText("应在0-100间");scucss=false;}catch(NumberFormatException cm){input4.setText("成绩应为数据");scucss=false;}if(scucss==true){stu+=(""+input1.getText()+"");stu+=(""+input2.getText()+"");stu+=(input3.getText()+"");stu+=(input4.getText()+"");stu+=("\r\n");SI=new StudentInf(xm,xh,bj,cj);Insert(SI);}repaint(1,111,111,500,300);}if(e.getActionCommand()=="修改"){xm=input1.getText();xh=Integer.parseInt(input2.getText());bj=input3.getText();cj=Integer.parseInt(input4.getText());SI=new StudentInf(xm,xh,bj,cj);StuInf.setElementAt(SI,mid);f.setEnabled(false);}if(e.getActionCommand()=="删除"){StuInf.removeElementAt(mid);g.setEnabled(false);input1.setText("删除成功");input2.setText("");input3.setText("");input4.setText("");}if(e.getActionCommand()=="查询"){boolean right=true;try{xh=Integer.parseInt(input2.getText());}catch(NumberFormatException m){input2.setText("学号为空或格式错");right=false;}if(right==true){search(xh);f.setEnabled(true);g.setEnabled(true);}}if(e.getActionCommand()=="生成文档(D:/yj.txt)") {ObjectOutputStream out;try{out=new ObjectOutputStream(new FileOutputStream("d:/yj.txt"));out.writeObject(stu);//out.writeUTF(stu);out.flush();out.close();}catch(FileNotFoundException e1){//TODO Auto-generated catch blocke1.printStackTrace();}catch(IOException e1){//TODO Auto-generated catch blocke1.printStackTrace();}}}//查找方法public void search(int k){boolean exist=false;int low=0;int high=StuInf.size()-1;while(low<=high){mid=(high+low)/2;StudentInf a1=(StudentInf)StuInf.elementAt(mid);if(a1.getStuNo()==k){SI=(StudentInf)StuInf.elementAt(mid);String x=String.valueOf(SI.getStuNo());exist=true;input1.setText(SI.getname());input1.selectAll();input2.setText("0"+x);input3.setText(SI.getClassNo());if(SI.getLevel()==-1)input4.setText("未参加考试");else{String y=String.valueOf(SI.getLevel());input4.setText(y);}break;}else if(a1.getStuNo()<k)low=mid+1;elsehigh=mid-1;}if(exist==false){input1.setText("无此学号学生信息");input1.selectAll();}}//添加方法public void Insert(StudentInf q){int i=0;if(StuInf.isEmpty()==true){StuInf.addElement(q);input1.setText("");input2.setText("");input3.setText("");input4.setText("");}else{StudentInf xh;xh=(StudentInf)StuInf.firstElement();while(xh.getStuNo()<q.getStuNo()){i++;if(i<StuInf.size())xh=(StudentInf)StuInf.elementAt(i);elsebreak;}if(xh.getStuNo()==q.getStuNo()){input2.setText("此学生信息已存在");input2.requestFocus();input2.selectAll();}else{StuInf.insertElementAt(q,i);input1.setText("");input2.setText("");input3.setText("");input4.setText("");}}}//异常类class OverException extends Exception{String over;}class EmptyException extends Exception{String empty;}void XingMing()throws EmptyException{if((input1.getText()).equals(""))throw(new EmptyException());elsexm=input1.getText();}void ChengJi()throws OverException,EmptyException {if((input4.getText()).equals(""))throw(new EmptyException());elsecj=Integer.parseInt(input4.getText());if(cj<0||cj>100)throw(new OverException());}//学生信息类public class StudentInf{private String name;private int StuNo;private String ClassNo;private int Level;StudentInf(String xingming,int xuehao,String banji,int chengji){name=xingming;StuNo=xuehao;ClassNo=banji;Level=chengji;}public int getStuNo(){return StuNo;}public String getname(){return name;}public String getClassNo(){return ClassNo;}public int getLevel(){return Level;}}}完成人签名：四、任务进度表（组长完成）日期计划任务任务负责人完成任务情况完成人签名：五、测试结果系统测试结果输入值预期结果实际结果评价完成人签名：六、设计小结(如果是多人合作，每人一页，个人签名)完成人签名：七、用户使用说明完成人签名：八、参考文献（3篇及3篇以上）小组成绩评定表成员姓名工作量（%）（详细说明小组分工情况）完成质量（分）（100分制）完成人签名：。