要求：
有三个专家，病人可以根据自己的实际情况选择相应的专家，专家通过点击按钮选择下一个病人。
程序代码如下：
//封装病人类
package com.dr.hospitalQueueSystem;
import java.util.LinkedList;
import java.util.Queue;
public class Patient {
private int num;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
public Patient(int num,String name)
{
this.setName(name);
this.setNum(num);
}
}
//封装专家类
package com.dr.hospitalQueueSystem;
import java.util.LinkedList;
import java.util.Queue;
public class Professor {
private String name;
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.setName(name);
}
public Professor(String name,int id)
{
this.name=name;
this.id=id;
}
}
//挂号服务器
package com.dr.hospitalQueueSystem;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.Map;
import java.util.Queue;
public class HospitalQueueServer {
Map<Integer,Queue<Patient>> map=new HashMap<Integer,Queue<Patient>>();
Queue<Patient> patientList1=new LinkedList<Patient>();
Queue<Patient> patientList2=new LinkedList<Patient>();
Queue<Patient> patientList3=new LinkedList<Patient>();
public void Init()
{
//实例化三个专家
Professor pfr1=new Professor("张三",1);
Professor pfr2=new Professor("李四",2);
Professor pfr3=new Professor("王五",3);
//实例化15个病人,并将他们每五个添加到三个专家所对应的集合队列中
patientList1.offer(new Patient(1, "成龙"));
patientList1.offer(new Patient(2, "李小龙"));
patientList1.offer(new Patient(3, "大S"));
patientList1.offer(new Patient(4, "郭富城"));
patientList1.offer(new Patient(5, "小S"));
patientList2.offer(new Patient(6, "刘德华"));
patientList2.offer(new Patient(7, "林心如"));
patientList2.offer(new Patient(8, "张静初"));
patientList2.offer(new Patient(9, "王宝强"));
patientList2.offer(new Patient(10, "李连杰"));
patientList3.offer(new Patient(11, "大傻"));
patientList3.offer(new Patient(12, "张国荣"));
patientList3.offer(new Patient(13, "周星驰"));
patientList3.offer(new Patient(14, "赵薇"));
patientList3.offer(new Patient(15, "周迅"));
//将各个专家与他们对应的病人集合进行键值对
map.put(pfr1.getId(), patientList1);
map.put(pfr2.getId(), patientList2);
map.put(pfr3.getId(), patientList3);
}
}
//病人使用端
package com.dr.hospitalQueueSystem;
import java.util.Queue;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class PatientQueueUI {
public static void main(String args[])
{
Display display=new Display();
Shell shell=new Shell(display);
shell.setMaximized(true);
//初始化界面
shell.setText("医院病人挂号使用系统");
//服务器初始化
HospitalQueueServer hq=new HospitalQueueServer();
hq.Init();
final Queue<Patient> patientList1=hq.map.get(1);
final Queue<Patient> patientList2=hq.map.get(2);
final Queue<Patient> patientList3=hq.map.get(3);
//添加标签控件
Label label=new Label(shell,SWT.NONE);
label.setFont(new Font(display,"宋体",15,SWT.BOLD));
label.setBounds(450,100,600,100);
label.setText("想要选择那位专家为你看病，请点击相应专家的姓名按钮！");
//添加三个文本框
final Text text1=new Text(shell,SWT.WRAP);
text1.setBounds(100,250,250,200);
final Text text2=new Text(shell,SWT.WRAP);
text2.setBounds(550,250,250,200);
final Text text3=new Text(shell,SWT.WRAP);
text3.setBounds(900,250,250,200);
//添加按钮1
Button button1=new Button(shell,SWT.Activate);
button1.setBounds(150,520,120,60);
button1.setText("1号专家张三");
//添加按钮2
Button button2=new Button(shell,SWT.Activate);
button2.setBounds(600,520,120,60);
button2.setText("2号专家李四");
//添加按钮3
Button button3=new Button(shell,SWT.Activate);
button3.setBounds(960,520,120,60);
button3.setText("3号专家王五");
//为按钮1添加事件处理，事件处理内容为“读取病人的id和姓名，并将此病人添加到相应专家的对立中”
button1.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=new Patient(patientList1.size()+1,"***");
patientList1.offer(pt);
text1.setText(pt.getNum()+"号病人，欢迎选择1号专家为你坐诊，请在等候区等候，会有工作人员通过广播通知你什么时候去看病");
}
});
//为按钮2添加事件处理
button2.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=new Patient(patientList2.size()+1,"****");
patientList2.offer(pt);
text2.setText(pt.getNum()+"号病人，欢迎选择2号专家为你坐诊，请在等候区等候，会有工作人员通过广播通知你什么时候去看病");
}
});
//为按钮3添加事件处理
button3.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=new Patient(patientList3.size()+1,"****");
patientList3.offer(pt);
text3.setText(pt.getNum()+"号病人,欢迎选择3号专家为你坐诊，请在等候区等候，会有工作人员通过广播通知你什么时候去看病");
}
});
shell.layout();
shell.open();
while(!shell.isDisposed())
{
if(!display.readAndDispatch()){
display.sleep();
}
}
}
}
**************************************************************************
程序运行结果如下：
//专家使用端
package com.dr.hospitalQueueSystem;
import java.util.Queue;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class ProfessorUI {
public static void main(String args[])
{
final Display display = Display.getDefault();
final Shell shell = new Shell();
shell.setMaximized(true);
//初始化界面
shell.setText("专家使用系统端");
//服务器初始化
HospitalQueueServer hq=new HospitalQueueServer();
hq.Init();
final Queue<Patient> qp1=hq.map.get(1);
final Queue<Patient> qp2=hq.map.get(2);
final Queue<Patient> qp3=hq.map.get(3);
//添加文本控件
final Text text1=new Text(shell,SWT.WRAP);
text1.setBounds(100,250,250,200);
text1.setFont(new Font(display,"宋体",15,SWT.BOLD));
final Text text2=new Text(shell,SWT.WRAP);
text2.setFont(new Font(display,"宋体",15,SWT.BOLD));
text2.setBounds(550,250,250,200);
final Text text3=new Text(shell,SWT.WRAP);
text3.setFont(new Font(display,"宋体",15,SWT.BOLD));
text3.setBounds(900,250,250,200);
//添加按钮1
Button button1=new Button(shell,SWT.Activate);
button1.setBounds(150,520,120,60);
button1.setText("张三:下一个");
//添加按钮2
Button button2=new Button(shell,SWT.Activate);
button2.setBounds(600,520,120,60);
button2.setText("李四:下一个");
Button button3=new Button(shell,SWT.Activate);
button3.setBounds(960,520,120,60);
button3.setText("王五:下一个");
//为按钮1添加事件处理，事件处理内容为“读取病人的id和姓名，并将此病人添加到相应专家的对立中”
button1.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=qp1.poll();
if(pt!=null)
{
text1.setText(pt.getName()+"请进来");
}
else
{
text1.setText("暂时没有病人了，您先休息会儿");
}
}
});
//为按钮2添加事件处理
button2.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=qp2.poll();
if(pt!=null)
{
text2.setText(pt.getName()+"请进来");
}
else
{
text2.setText("暂时没有病人了，您先休息会儿");
}
}
});
//为按钮3添加事件处理
button3.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent e)
{
Patient pt=qp3.poll();
if(pt!=null)
{
text3.setText(pt.getName()+"请进来");
}
else
{
text3.setText("暂时没有病人了，您先休息会儿");
}
}
});
shell.layout();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
}
********************************************************************************************
程序运行结果如下：
这个程序还有许多缺点比如说数据冗余，没有实现专家与病人之间的通信！
由于没有实现多线程技术，在专家系统端运行时，只能是调用服务器初始化的病人，不能调用病人系统端添加的病人。