java系统源码 java编辑器手机版
很多朋友对于java系统源码和java编辑器手机版不太懂，今天就由小编来为大家分享，希望可以帮助到大家，下面一起来看看吧！
学生考试管理系统,JAva源代码
//主类EnglishTest——
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class EnglishTest extends JFrame
{
TestArea testPanel=null;
Container con=null;
public EnglishTest()
{
super("模拟考试");
testPanel=new TestArea();
con=getContentPane();
con.add(testPanel,BorderLayout.CENTER);
addWindowListener(new WindowAdapter()
{ public void windowClosing(WindowEvent e)
{ System.exit(0);
}
});
setVisible(true);
setBounds(60,40,660,460);
con.validate();
validate();
}
public static void main(String args[])
{
new EnglishTest();
}
}
//读取试题 ReadTestquestion
import java.io.*;
import java.util.*;
public class ReadTestquestion
{ String filename="",
correctAnswer="",
testContent="",
selection="";
int score=0;
long time=0;
boolean完成考试=false;
File f=null;
FileReader in=null;
BufferedReader读取=null;
public void setFilename(String name)
{ filename=name;
score=0;
selection="";
try{
if(in!=null&&读取!=null)
{
in.close();
读取.close();
}
f=new File(filename);
in=new FileReader(f);
读取=new BufferedReader(in);
correctAnswer=(读取.readLine()).trim();
String temp=(读取.readLine()).trim();
StringTokenizer token=new StringTokenizer(temp,":");
int hour=Integer.parseInt(token.nextToken());
int minute=Integer.parseInt(token.nextToken());
int second=Integer.parseInt(token.nextToken());
time=1000*(second+minute*60+hour*60*60);
}
catch(Exception e)
{
testContent="没有选择试题";
}
}
public String getFilename()
{
return filename;
}
public long getTime()
{
return time;
}
public void set完成考试(boolean b)
{
完成考试=b;
}
public boolean get完成考试()
{
return完成考试;
}
public String getTestContent()
{ try{
String s=null;
StringBuffer temp=new StringBuffer();
if(读取!=null)
{
while((s=读取.readLine())!=null)
{
if(s.startsWith("**"))
break;
temp.append("\n"+s);
if(s.startsWith("endend"))
{
in.close();
读取.close();
完成考试=true;
}
}
testContent=new String(temp);
}
else
{
testContent=new String("没有选择试题");
}
}
catch(Exception e)
{
testContent="试题内容为空,考试结束！！";
}
return testContent;
}
public void setSelection(String s)
{
selection=selection+s;
}
public int getScore()
{ score=0;
int length1=selection.length();
int length2=correctAnswer.length();
int min=Math.min(length1,length2);
for(int i=0;i<min;i++)
{ try{
if(selection.charAt(i)==correctAnswer.charAt(i))
score++;
}
catch(StringIndexOutOfBoundsException e)
{
i=0;
}
}
return score;
}20:10 03-8-31
public String getMessages()
{
int length1=selection.length();
int length2=correctAnswer.length();
int length=Math.min(length1,length2);
String message="正确答案:"+correctAnswer.substring(0,length)+"\n"+
"你的回答:"+selection+"\n";
return message;
}
}
//考试区域TestArea
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
class FileName implements FilenameFilter
{
String str=null;
FileName(String s)
{
str="."+s;
}
public boolean accept(File dir,String name)
{
return name.endsWith(str);
}
}
public class TestArea extends JPanel implements ActionListener,ItemListener,Runnable
{
Choice list=null;
JTextArea试题显示区=null,消息区=null;
JCheckBox box[];
JButton提交该题答案,读取下一题,查看分数;
ReadTestquestion读取试题=null;
JLabel welcomeLabel=null;
Thread countTime=null;
long time=0;
JTextField timeShow=null;
boolean是否关闭计时器=false,
是否暂停计时=false;
JButton暂停或继续计时=null;
public TestArea()
{
list= new Choice();
String当前目录=System.getProperty("user.dir");
File dir=new File(当前目录);
FileName fileTxt=new FileName("txt");
String fileName[]=dir.list(fileTxt);
for(int i=0;i<fileName.length;i++)
{
list.add(fileName[i]);
}
试题显示区=new JTextArea(15,12);
试题显示区.setLineWrap(true);
试题显示区.setWrapStyleWord(true);
试题显示区.setFont(new Font("TimesRoman",Font.PLAIN,14));
试题显示区.setForeground(Color.blue);
消息区=new JTextArea(8,8);
消息区.setForeground(Color.blue);
消息区.setLineWrap(true);
消息区.setWrapStyleWord(true);
countTime=new Thread(this);
String s[]={"A","B","C","D"};
box=new JCheckBox[4];
for(int i=0;i<4;i++)
{
box[i]=new JCheckBox(s[i]);
}
暂停或继续计时=new JButton("暂停计时");
暂停或继续计时.addActionListener(this);
提交该题答案=new JButton("提交该题答案");
读取下一题=new JButton("读取第一题");
读取下一题.setForeground(Color.blue);
提交该题答案.setForeground(Color.blue);
查看分数=new JButton("查看分数");
查看分数.setForeground(Color.blue);
提交该题答案.setEnabled(false);
提交该题答案.addActionListener(this);
读取下一题.addActionListener(this);
查看分数.addActionListener(this);
list.addItemListener(this);
读取试题=new ReadTestquestion();
JPanel pAddbox=new JPanel();
for(int i=0;i<4;i++)
{
pAddbox.add(box[i]);
}
Box boxH1=Box.createVerticalBox(),
boxH2=Box.createVerticalBox(),
baseBox=Box.createHorizontalBox();
boxH1.add(new JLabel("选择试题文件"));
boxH1.add(list);
boxH1.add(new JScrollPane(消息区));
boxH1.add(查看分数);
timeShow=new JTextField(20);
timeShow.setHorizontalAlignment(SwingConstants.RIGHT);
timeShow.setEditable(false);
JPanel p1=new JPanel();
p1.add(new JLabel("剩余时间："));
p1.add(timeShow);
p1.add(暂停或继续计时);
boxH1.add(p1);
boxH2.add(new JLabel("试题内容:"));
boxH2.add(new JScrollPane(试题显示区));
JPanel p2=new JPanel();
p2.add(pAddbox);
p2.add(提交该题答案);
p2.add(读取下一题);
boxH2.add(p2);
baseBox.add(boxH1);
baseBox.add(boxH2);
setLayout(new BorderLayout());
add(baseBox,BorderLayout.CENTER);
welcomeLabel=new JLabel("欢迎考试,提高英语水平",JLabel.CENTER);
welcomeLabel.setFont(new Font("隶书",Font.PLAIN,24));
welcomeLabel.setForeground(Color.blue);
add(welcomeLabel,BorderLayout.NORTH);
}
public void itemStateChanged(ItemEvent e)
{
timeShow.setText(null);
是否关闭计时器=false;
是否暂停计时=false;
暂停或继续计时.setText("暂停计时");
String name=(String)list.getSelectedItem();
读取试题.setFilename(name);
读取试题.set完成考试(false);
time=读取试题.getTime();
if(countTime.isAlive())
{
是否关闭计时器=true;
countTime.interrupt();
}
countTime=new Thread(this);
消息区.setText(null);
试题显示区.setText(null);
读取下一题.setText("读取第一题");
提交该题答案.setEnabled(false);
读取下一题.setEnabled(true);
welcomeLabel.setText("欢迎考试,你选择的试题:"+读取试题.getFilename());
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==读取下一题)
{
读取下一题.setText("读取下一题");
提交该题答案.setEnabled(true);
String contentTest=读取试题.getTestContent();
试题显示区.setText(contentTest);
消息区.setText(null);
读取下一题.setEnabled(false);
try{
countTime.start();
}
catch(Exception event)
{
}
}
if(e.getSource()==提交该题答案)
{
读取下一题.setEnabled(true);
提交该题答案.setEnabled(false);
String answer="?";
for(int i=0;i<4;i++)
{
if(box[i].isSelected())
{
answer=box[i].getText();
box[i].setSelected(false);
break;
}
}
读取试题.setSelection(answer);
}
if(e.getSource()==查看分数)
{
int score=读取试题.getScore();
String messages=读取试题.getMessages();
消息区.setText("分数:"+score+"\n"+messages);
}
if(e.getSource()==暂停或继续计时)
{
if(是否暂停计时==false)
{
暂停或继续计时.setText("继续计时");
是否暂停计时=true;
}
else if(是否暂停计时==true)
{
暂停或继续计时.setText("暂停计时");
是否暂停计时=false;
countTime.interrupt();
}
}
}
public synchronized void run()
{
while(true)
{
if(time<=0)
{
是否关闭计时器=true;
countTime.interrupt();
提交该题答案.setEnabled(false);
读取下一题.setEnabled(false);
timeShow.setText("用时尽,考试结束");
}
else if(读取试题.get完成考试())
{
是否关闭计时器=true;
timeShow.setText("考试效果:分数*剩余时间(秒)="+1.0*读取试题.getScore()*(time/1000));
countTime.interrupt();
提交该题答案.setEnabled(false);
读取下一题.setEnabled(false);
}
else if(time>=1)
{
time=time-1000;
long leftTime=time/1000;
long leftHour=leftTime/3600;
long leftMinute=(leftTime-leftHour*3600)/60;
long leftSecond=leftTime%60;
timeShow.setText(""+leftHour+"小时"+leftMinute+"分"+leftSecond+"秒");
}
try
{
Thread.sleep(1000);
}
catch(InterruptedException ee)
{
if(是否关闭计时器==true)
return;
}
while(是否暂停计时==true)
{
try
{
wait();
}
catch(InterruptedException ee)
{
if(是否暂停计时==false)
{
notifyAll();
}
}
}
}
}
}
急求java学生信息管理系统源代码,带有连接数据库的,万分感谢
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.SwingConstants;
public class MainFrame extends JFrame implements ActionListener{
InsertPanel ip= null;
SelectPanel sp= null;
JPanel pframe;
JButton jb1,jb2,jb3;
JMenuItem jm11,jm21,jm22,jm23,jm31,jm32,jm41,jm42;
CardLayout clayout;
public MainFrame(String s){
super(s);
JMenuBar mb= new JMenuBar();
this.setJMenuBar(mb);
JMenu m1= new JMenu("系统");
JMenu m2= new JMenu("基本信息");
JMenu m3= new JMenu("成绩");
JMenu m4= new JMenu("奖惩");
mb.add(m1);
mb.add(m2);
mb.add(m3);
mb.add(m4);
jm11= new JMenuItem("退出系统");
jm21= new JMenuItem("输入");
jm22= new JMenuItem("查询");
jm23= new JMenuItem("更改");
jm31= new JMenuItem("输入成绩");
jm32= new JMenuItem("查询成绩");
jm41= new JMenuItem("奖励");
jm42= new JMenuItem("处分");
m1.add(jm11);
m2.add(jm21);
m2.add(jm22);
m2.add(jm23);
m3.add(jm31);
m3.add(jm32);
m4.add(jm41);
m4.add(jm42);
Icon i1= new ImageIcon();
Icon i2= new ImageIcon();
Icon i3= new ImageIcon();
jb1= new JButton(i1);
jb1.setToolTipText("输入");
jb2= new JButton(i2);
jb2.setToolTipText("查询");
jb3= new JButton(i3);
jb3.setToolTipText("退出");
JToolBar tb= new JToolBar("系统工具");
tb.add(jb1);
tb.add(jb2);
tb.add(jb3);
add(tb,BorderLayout.NORTH);
jm11.addActionListener(this);
jm21.addActionListener(this);
jm22.addActionListener(this);
jb1.addActionListener(this);
jb2.addActionListener(this);
jb3.addActionListener(this);
clayout= new CardLayout();
pframe= new JPanel(clayout);
add(pframe);
JPanel mainp= new JPanel(new BorderLayout());
JLabel mainl= new JLabel("学生信息管理平台",SwingConstants.CENTER);
mainl.setFont(new Font("serif",Font.BOLD,30));
mainp.add(mainl);
pframe.add(mainp,"main");
clayout.show(pframe,"main");
}
public void actionPerformed(ActionEvent e){
if(e.getSource()== jm21|| e.getSource()== jb1){
if(ip== null){
ip= new InsertPanel();
pframe.add(ip,"insert");
}
clayout.show(pframe,"insert");
this.setTitle("输入学生信息");
}
else if(e.getSource()== jm22|| e.getSource()== jb2){
if(sp== null){
sp= new SelectPanel();
pframe.add(sp,"select");
}
clayout.show(pframe,"select");
this.setTitle("查询学生信息");
}
else if(e.getSource()== jm11|| e.getSource()== jb3){
System.exit(0);
}
}
}
第二个：
import javax.swing.JFrame;
public class MainTest{
public static void main(String [] args){
MainFrame f= new MainFrame("学生信息管理平台");
f.setSize(400,300);
f.setLocation(350,250);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}
第二个：
import java.sql.Connection;
import java.sql.DriverManager;
public class MySQLConnection{
static Connection getCon(){
Connection con= null;
try{
Class.forName("com.mysql.jdbc.Driver");
con= DriverManager.getConnection("jdbc:mysql://localhost/test","root","123");
}
catch(Exception e){
System.out.println("建立数据库连接遇到异常！");
}
return con;
}
}
第四个：
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
public class SelectPanel extends JPanel implements ActionListener{
JButton jb;
JTextField jt;
JTextField jt1,jt2,jt3,jt4;
public SelectPanel(){
JLabel jl= new JLabel("请输入学号:",SwingConstants.CENTER);
jt= new JTextField();
jb= new JButton("确定");
JPanel jp1= new JPanel(new GridLayout(1,3));
jp1.add(jl);
jp1.add(jt);
jp1.add(jb);
JLabel j1,j2,j3,j4;
j1= new JLabel("学号:",SwingConstants.CENTER);
j2= new JLabel("姓名:",SwingConstants.CENTER);
j3= new JLabel("性别:",SwingConstants.CENTER);
j4= new JLabel("年龄:",SwingConstants.CENTER);
jt1= new JTextField(6);
jt1.setEditable(false);
jt2= new JTextField(6);
jt2.setEditable(false);
jt3= new JTextField(6);
jt3.setEditable(false);
jt4= new JTextField(6);
jt4.setEditable(false);
JPanel jp2= new JPanel(new BorderLayout());
JPanel jp3= new JPanel(new GridLayout(4,2));
jp2.add(new JLabel(""),BorderLayout.NORTH);
jp3.add(j1);
jp3.add(jt1);
jp3.add(j2);
jp3.add(jt2);
jp3.add(j3);
jp3.add(jt3);
jp3.add(j4);
jp3.add(jt4);
jp2.add(jp3);
this.setLayout(new BorderLayout());
add(jp1,BorderLayout.NORTH);
add(jp2);
jb.addActionListener(this);
}
public void actionPerformed(ActionEvent e){
if(e.getSource()== jb){
String stuNo= jt.getText().trim();
Student s= new Student();
boolean b= true;
try{
b= s.selectByStuNo(stuNo);
}
catch(Exception ex){
System.out.println("查询学生信息遇到异常!");
}
if(b){
jt1.setText(s.getStuNo());
jt2.setText(s.getName());
jt3.setText(s.getGender());
int a= s.getAge();
Integer i= new Integer(a);
jt4.setText(i.toString());
}
else{
JOptionPane.showMessageDialog(null,"无此学生!");
}
}
}
}
第五个：
import javax.swing.JFrame;
public class SelectTest{
public static void main(String [] args){
JFrame f= new JFrame("查询学生信息");
SelectPanel p= new SelectPanel();
f.add(p);
f.setSize(400,300);
f.setLocation(300,250);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}
第六个：
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
public class Student{
String stuNo;
String name;
String gender;
int age;
public Student(){}
public Student(String stuNo,String name,String gender, int age){
this.stuNo= stuNo;
this.name= name;
this.gender= gender;
this.age= age;
}
public String getStuNo(){
return stuNo;
}
public void setStuNo(String stuNo){
this.stuNo= stuNo;
}
public String getName(){
return name;
}
public void setName(String name){
this.name= name;
}
public String getGender(){
return gender;
}
public void setGender(String gender){
this.gender= gender;
}
public int getAge(){
return age;
}
public void setAge(int age){
this.age= age;
}
public boolean insertStudent(){
boolean b= true;
try{
Connection con= MySQLConnection.getCon();
Statement statement= con.createStatement();
String sql="insert into student values('"+ stuNo+"','"+ name+"','"+ gender+"',"+ age+")";
sql= new String(sql.getBytes("gb2312"),"ISO8859_1");
statement.executeUpdate(sql);
con.close();
}
catch(Exception e){
b= false;
System.out.println("插入数据库遇到异常！");
}
return b;
}
public boolean selectByStuNo(String stuNo)throws Exception{
boolean b= true;
Connection con= MySQLConnection.getCon();
Statement statement= con.createStatement();
String sql="select* from student where stuNo="+ stuNo;
ResultSet rs= statement.executeQuery(sql);
if(rs!= null&& rs.next()){
String no= rs.getString(1);
this.setStuNo(no);
String n= rs.getString(2);
n= new String(n.getBytes("ISO8859_1"),"gb2312");
this.setName(n);
String g= rs.getString(3);
g= new String(g.getBytes("ISO8859_1"),"gb2312");
this.setGender(g);
this.setAge(rs.getInt(4));
b= true;
}
rs.close();
statement.close();
con.close();
return b;
}
}
数据库你自己弄吧，我没时间弄了！初学得多动手哦
求一个基于Java编写的医院预约系统源码
摘要
进入21世纪以来，网络的空前发展给人们的工作和生活带来了极大的便利，信息化建设已经成为节约运营成本、提高工作效率的首选。相比之下，国内相当数量的中小医院的医院预约挂号工作还采用相对保守的手工工作方式，数据信息查询和存储的成本较高，但效率却很低下。为了使医院预约挂号管理更高效、更科学，决定开发医院预约挂号平台。
本文采用结构化分析的方法，详细阐述了一个功能比较强大的医院预约挂号平台的前后台开发、操作流程和涉及的一些关键技术。首先进行了可行性分析，然后是系统分析，通过实际的业务流程调研，分析业务流程和系统的组织结构，完成了数据流分析和数据字典；然后是系统设计阶段主要完成了功能模块的划分、阐述了系统设计的思想、数据库的设计和系统设计的工具及技术。该阶段对本系统各个模块的功能进行了详细设计，形成了本系统的功能模块图；数据库设计时先进行了概念结构设计，然后进行了逻辑结构设计，最后完成了数据表的设计。
根据前几个阶段的分析和设计，本系统在设计方面采用B/S模式，同时使用JSP技术进行基本页面的设计与功能实现，后台数据库选用SQL Server 2000数据库。本系统的设计实施为医院预约挂号系统的运行做基础，为医院预约挂号管理工作提供良好的条件。
关键词：预约挂号；结构化分析；平台
Abstract
In the 21st century, the unprecedented development of the network to the people's work and life has brought great convenience, information technology has become operational cost savings, improve efficiency of choice. In contrast, a considerable number of domestic small and medium hospitals, hospital appointment registration work is relatively conservative with manual work, data query and the high cost of storage, but the efficiency is very low. To make an appointment by registered hospital management more efficient, more science, decided to develop the hospital appointment registration platform.
In this paper, structural analysis, a function described in detail more powerful platform for the hospital before and after the appointment register sets and development, operational processes, and some of the key technologies involved. First, a feasibility analysis, and system analysis, business process through the actual research, analyze business processes and organizational structure of the system to complete the data flow analysis and data dictionary; then completed the system design phase is mainly divided into functional modules, elaborated the idea of the system design, database design and system design tools and techniques. This phase of the system function of each module in detail the design, forming a functional block diagram of the system; database design first tested the concept design, followed by a logic design, and finally completed the data table design.
According to the first few stages of the analysis and design, the system used in the design of B/ S mode, JSP technology, the basic page design and implementation of function, use SQL Server 2000 database backend database. Implementation of the system design registration system for the operation of the hospital appointment as a foundation for the hospital management to provide a good appointment registration conditions.
Key Words：Appointment registration; structural analysis; platform
目录
摘要... I
Abstract II
一、引言... 1
（一）项目开发的背景... 1
（二）项目开发的目的... 1
二、可行性分析及总体设计原则... 2
（一）可行性分析... 2
1．技术可行性... 2
2．经济可行性... 2
3．社会可行性... 3
（二）总体设计原则... 3
三、系统分析... 5
（一）业务流程分析... 5
（二）数据流图... 6
（三）数据字典... 9
四、系统设计... 13
（一）系统功能设计... 13
（二）系统数据库设计... 14
1．概念结构设计... 14
2．逻辑结构设计... 18
3．数据库表设计... 18
（三）系统开发工具与开发模式的选择... 20
1．系统开发工具... 20
2．系统设计模式... 21
五、系统实现... 22
（一）用户模块... 22
1．登录及注册管理模块... 22
2．首界面... 23
3．用户注册界面... 24
4．公告界面... 25
5．科室预约界面... 26
6．留言界面... 27
（三）管理员模块... 28
1．登录界面... 28
2．科室管理界面... 28
3．添加专家界面... 29
六、性能测试与分析... 30
（一）测试的重要性... 30
（二）测试实例的研究与选择... 30
（三）测试环境与测试条件... 31
（四）实例测试... 32
（五）系统评价... 32
（六）测试结果... 33
参考文献... 35
致谢... 36
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