Java 简单站购票系统.doc

package train;/先运行Ticket初始化票务信息 然后运行Buyimport java.awt.Choice;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.util.ArrayList;import javax.swing.JButton;import javax.swing.JDialog;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;/购票程序public class Buy extends Threadpublic static void main(String args)/创建窗体和容器final JFrame jf = new JFrame();JPanel jp = new JPanel();/创建组件final Choice city = new Choice();final Choice city1 = new Choice();city.add(北京);city.add(上海);city.add(广州);city1.add(北京);city1.add(上海);city1.add(广州);JButton but = new JButton(确定);JLabel j1 = new JLabel(起始站：);JLabel j2 = new JLabel(终点站：);JLabel j3 = new JLabel(剩余票数：);JLabel j4 = new JLabel(单价：);JLabel j5 = new JLabel(购买数量：);JLabel j6 = new JLabel(合计：);JLabel j7 = new JLabel(付款：);JLabel j8 = new JLabel(找零：);final JTextField jtf1 = new JTextField();final JTextField jtf2 = new JTextField();final JTextField jtf3 = new JTextField();final JTextField jtf4 = new JTextField();final JTextField jtf5 = new JTextField();final JTextField jtf6 = new JTextField();/布局jp.setLayout(null);j1.setBounds(0,0,80,30);city.setBounds(80,0,80,30);j2.setBounds(160,0,80,30);city1.setBounds(240,0,80,30);j3.setBounds(320,0,80,30);jtf1.setBounds(400,0,80,30);j4.setBounds(0,40,80,30);jtf2.setBounds(80,40,80,30);j5.setBounds(160,40,80,30);jtf3.setBounds(240,40,80,30);j6.setBounds(320,40,80,30);jtf4.setBounds(400,40,80,30);j7.setBounds(0,80,80,30);jtf5.setBounds(80,80,80,30);j8.setBounds(160,80,80,30);jtf6.setBounds(240,80,80,30);but.setBounds(400,80,80,30);/将组件添加到容器jp.add(j1);jp.add(j2);jp.add(j3);jp.add(j4);jp.add(j5);jp.add(j6);jp.add(j7);jp.add(j8);jp.add(but);jp.add(jtf1);jp.add(jtf2);jp.add(jtf3);jp.add(jtf4);jp.add(jtf5);jp.add(jtf6);jp.add(city);jp.add(city1);/将容器添加到窗体jf.add(jp);/设置窗体jf.setSize(500,200);jf.setVisible(true);city.addItemListener(new ItemListener() Overridepublic void itemStateChanged(ItemEvent e) String str1 = city.getSelectedItem();String str2 = city1.getSelectedItem();Ticket t1 = new Ticket();t1.TicketReader();ArrayList t = t1.TicketReader();for(int i = 0;it.size();i+)if(t.get(i).getStart().equals(str1)if(t.get(i).getLast().equals(str2)jtf1.setText(t.get(i).getNum()+);jtf2.setText(t.get(i).getPrice()+););city1.addItemListener(new ItemListener() Overridepublic void itemStateChanged(ItemEvent e) String str1 = city.getSelectedItem();String str2 = city1.getSelectedItem();Ticket t1 = new Ticket();t1.TicketReader();ArrayList t = t1.TicketReader();for(int i = 0;it.size();i+)if(t.get(i).getStart().equals(str1)if(t.get(i).getLast().equals(str2)jtf1.setText(t.get(i).getNum()+);jtf2.setText(t.get(i).getPrice()+););but.addActionListener(new ActionListener() Overridepublic void actionPerformed(ActionEvent e) try/从表中获取信息String price = jtf2.getText();String num = jtf3.getText();String pay = jtf5.getText();double p = Double.valueOf(price);int n = Integer.valueOf(num);double sum = n*p;double p1 = Double.valueOf(pay);double change = p1 - sum;int key = 0;String str1 = city.getSelectedItem();String str2 = city1.getSelectedItem();Ticket t1 = new Ticket();t1.TicketReader();ArrayList t = t1.TicketReader();for(int i = 0;it.size();i+)if(t.get(i).getStart().equals(str1)if(t.get(i).getLast().equals(str2)jtf1.setText(t.get(i).getNum()+);key = t.get(i).getNum();jtf2.setText(t.get(i).getPrice()+);if(keyn)JDialog jd = new JDialog();JPanel jp = new JPanel();JLabel jl = new JLabel(余票不足！);jp.add(jl);jd.add(jp);jd.setSize(200,100);jd.setVisible(true);elseif(change0)JDialog jd = new JDialog();JPanel jp = new JPanel();JLabel jl = new JLabel(付款不足！);jp.add(jl);jd.add(jp);jd.setSize(200,100);jd.setVisible(true);elseJDialog jd = new JDialog();JPanel jp = new JPanel();JLabel jl = new JLabel(购买成功！);jp.add(jl);jd.add(jp);jd.setSize(200,100);jd.setLocation(300,200);jd.setVisible(true);jtf4.setText(sum+);jtf6.setText(change+); str1 = city.getSelectedItem(); str2 = city1.getSelectedItem(); t1 = new Ticket();t1.TicketReader();/ArrayList t = t1.TicketReader();for(int i = 0;it.size();i+)if(t.get(i).getStart().equals(str1)if(t.get(i).getLast().equals(str2)jtf1.setText(t.get(i).getNum()+);jtf2.setText(t.get(i).getPrice()+);t.get(i).setNum(t.get(i).getNum()-n);t1.TicketWriter();catch(Exception e1)JDialog jd = new JDialog();JPanel jp = new JPanel();JLabel jl = new JLabel(请将购票信息输入完整！);jp.add(jl);jd.add(jp);jd.setSize(200,100);jd.setVisible(true););package train;import java.io.*;import java.util.ArrayList;import org.omg.CORBA.portable.InputStream;public class Ticket private String start;private String last;private double price;private int num;static ArrayList ticket = new ArrayList();public int getNum() return num;public void setNum(int num) this.num = num;public String getStart() return start;public void setStart(String start) this.start = start;public String getLast() return last;public void setLast(String last) this.last = last;public double getPrice() return price;public void setPrice(double price) this.price = price;/从文件中读取车票信息public ArrayList TicketReader()FileInputStream is = null;File file = new File(D:/ticket.txt);/创建byte数组，用于存放信息byte b = new byte(int)file.length();try is =new FileInputStream(file);is.read(b);String str = new String(b);String temp = str.split(;);for(int i = 0;itemp.length;i+)String s = tempi.split(,);Ticket t = new Ticket();t.setStart(s0);t.setLast(s1);t.setPrice(Double.valueOf(s2);t.setNum(Integer.valueOf(s3);ticket.add(t); catch (FileNotFoundException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();return ticket;/将车票信息写入文件public void TicketWriter()OutputStream os = null;File file = new File(D:/ticket.txt);String str = ;/str用于存放车票信息for(int i = 0;iticket.size();i+)str = str+ticket.get(i).getStart()+,+ticket.get(i).getLast()+,+ticket.get(i).getPrice()+,+ticket.get(i).getNum()+;try os = new FileOutputStream(file);os.write(str.getBytes(); catch (FileNotFoundException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();/初始车票信息public void set()Ticket t0 = new T