我的程序找不到我创建的故障单类。似乎弄清楚我做错了什么？谢谢
package javacw;
/*
*
* @Author Christopher Kempster;
*
*/
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class Main extends JFrame implements ActionListener {
public JButton buyButton, viewSeatsButton, clearSeatsButton;
String[] showTimes = {"1pm", "3pm", "5pm", "7pm", "9pm"};
String[] ageCategories = {"Adult", "Child", "OAP"};
String[] seatingSections = {"Left", "Middle", "Right"};
public JComboBox times, categories, sections;
public JTextField numberOfTickets;
public Ticket ticket;
public int price;
public static void main(String args[]) {
Main dashboard = new Main();
dashboard.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
Object item = times.getSelectedItem();
String stringTimes = (String)item;
Object item1 = categories.getSelectedItem();
String stringCategories = (String)item1;
Object item2 = sections.getSelectedItem();
String stringSections = (String)item2;
String text = numberOfTickets.getText();
int ii = Integer.parseInt(text);
if(e.getSource() == buyButton) {
buyTickets(stringTimes, stringSections, ii, stringCategories);
}
else if(e.getSource() == viewSeatsButton) {
showSeats(stringTimes, stringSections);
}
else if(e.getSource() == clearSeatsButton) {
clearSection(stringTimes, stringSections);
}
}
public Main() {
ticket = new Ticket();
JPanel panel = new JPanel();
FlowLayout flow = new FlowLayout();
panel.setLayout(flow);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(300, 500);
buyButton = new JButton("Buy tickets");
viewSeatsButton = new JButton("View seats");
clearSeatsButton = new JButton("Clear seats");
times = new JComboBox(showTimes);
categories = new JComboBox(ageCategories);
sections = new JComboBox(seatingSections);
JLabel label = new JLabel("Number of tickets:");
numberOfTickets = new JTextField(5);
buyButton.addActionListener(this);
viewSeatsButton.addActionListener(this);
clearSeatsButton.addActionListener(this);
panel.add(times);
panel.add(categories);
panel.add(sections);
panel.add(label);
panel.add(numberOfTickets);
panel.add(buyButton);
panel.add(viewSeatsButton);
panel.add(clearSeatsButton);
Container cp = getContentPane();
cp.add(panel, BorderLayout.CENTER);
cp.setBackground(Color.red);
}
public void showSeats(String a, String b) {
JOptionPane.showMessageDialog(this, "There are " + ticket.seatsLeft(a, b) + " seats left in the " + b + " at " + a + ".");
}
public void clearSection(String a, String b) {
ticket.clearSeats(a, b);
JOptionPane.showMessageDialog(this, "There are now " + ticket.seatsLeft(a, b) + " tickets left for this section.");
}
public void buyTickets(String a, String b, int i, String c) {
if(c.equals("Adult")) {
price = 5;
}
else if(c.equals("Child")) {
price = 2;
}
else if(c.equals("OAP")) {
price = 2;
}
price = price * i;
if(ticket.buyTix(a, b, i)) {
JOptionPane.showMessageDialog(this, "Tickets have been bought!\nThere are " + ticket.seatsLeft(a, b) + " seats left in this section.\nPrice of tickets bought: £" + price + ".");
}
else {
JOptionPane.showMessageDialog(this, "Sorry, there are just " + ticket.seatsLeft(a, b) + " tickets left for this section.");
}
}
}
Ticket.java
package javacw;
/*
*
* @Author Christopher Kempster;
*
*/
public class Ticket {
int c, seatsLeft;
public int[] seating = {12, 40, 12, 12, 40, 12, 12, 40, 12, 12, 40, 12, 12, 40, 12};
public int[] seating2 = {12, 40, 12, 12, 40, 12, 12, 40, 12, 12, 40, 12, 12, 40, 12};
public Ticket() {
}
public void clearSeats(String a, String b) {
seating[convertArrayPointer(a, b)] = seating2[convertArrayPointer(a, b)];
}
public boolean buyTix(String a, String b, int i) {
if(seatsLeft(a, b) >= i) {
seating[convertArrayPointer(a, b)] -= i;
return true;
}
else {
return false;
}
}
public int seatsLeft(String a, String b) {
seatsLeft = seating[convertArrayPointer(a, b)];
return seatsLeft;
}
public int convertArrayPointer(String a, String b) {
if(a.equals("1pm") && b.equals("Left")) {
c = 0;
}
else if(a.equals("1pm") && b.equals("Middle")) {
c = 1;
}
else if(a.equals("1pm") && b.equals("Right")) {
c = 2;
}
else if(a.equals("3pm") && b.equals("Left")) {
c = 3;
}
else if(a.equals("3pm") && b.equals("Middle")) {
c = 4;
}
else if(a.equals("3pm") && b.equals("Right")) {
c = 5;
}
else if(a.equals("5pm") && b.equals("Left")) {
c = 6;
}
else if(a.equals("5pm") && b.equals("Middle")) {
c = 7;
}
else if(a.equals("5pm") && b.equals("Right")) {
c = 8;
}
else if(a.equals("7pm") && b.equals("Left")) {
c = 9;
}
else if(a.equals("7pm") && b.equals("Middle")) {
c = 10;
}
else if(a.equals("7pm") && b.equals("Right")) {
c = 11;
}
else if(a.equals("9pm") && b.equals("Left")) {
c = 12;
}
else if(a.equals("9pm") && b.equals("Middle")) {
c = 13;
}
else if(a.equals("9pm") && b.equals("Right")) {
c = 14;
}
return c;
}
}
答案 0 :(得分：2)
当我在Eclipse下尝试时，这会正确编译。
问题不是来自您的代码。我认为它来自您的环境设置。源路径不正确或您的Ticket.java未位于正确的目录中（此处应为[src path]/javacw）。