我对我已经工作了几天的程序有点麻烦。基本上我要做的就是创建一个GUI来显示HTML文件的用户输入。我想要做的是让我的程序循环在frame1的按钮上，根据他们拥有多少机场腿，以获取所有用户输入：机场名称，Lat和Long。任何帮助都是适用的
package project4;
import java.awt.event.*;
import java.util.Scanner;
import javax.swing.*;
public class MainClass {
public static final int FRAME_WIDTH = 500;
public static final int FRAME_HEIGHT = 500;
public static void main(String[] args) { new MainClass();}
// Fields
private int legs;
private double speed;
private double totTime = 0;
private double totDist = 0;
private double lat;
private double lng;
private String name;
Airport user;
public MainClass() {
// Variable Declarations
// Frame window 1 : Contains Legs and Speed
JFrame frame = new JFrame("Legs and Speed");
JPanel panel = new JPanel();
JLabel labelLegs = new JLabel("Legs:");
JLabel labelSpeed = new JLabel("Speed:");
JTextField tf = new JTextField(5); // Leg field
JTextField tf1 = new JTextField(5); // Speed field
JButton button = new JButton("Ok");
JFrame frame1 = new JFrame();
JLabel label1 = new JLabel("Airport Name:");
JLabel label2 = new JLabel("Latitude:");
JLabel label3 = new JLabel("Longitude");
JPanel panel1 = new JPanel();
JTextField tf2 = new JTextField(5);
JTextField tf3 = new JTextField(5);
JTextField tf4 = new JTextField(5);
JButton button1 = new JButton("Ok");
// Add elements to panel and then to frame
panel.add(labelLegs);
panel.add(tf); // Leg field
panel.add(labelSpeed);
panel.add(tf1); // Speed field
panel.add(button);
frame.add(panel);
frame.setVisible(true);
frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
class legsAndSpeedListener implements ActionListener
{
public void actionPerformed(ActionEvent e) {
legs = Integer.parseInt(tf.getText());
speed = Double.parseDouble(tf1.getText());
frame.setVisible(false);
frame1.setVisible(true);
}
}
ActionListener listener = new legsAndSpeedListener();
button.addActionListener(listener);
// Arrays for Latitude and Longitude and Airport Name
String[] airportName = new String[legs];
double[] latitudeArr = new double[legs];
double[] longitudeArr = new double[legs];
panel1.add(label1);
panel1.add(tf2);
panel1.add(label2);
panel1.add(tf3);
panel1.add(label3);
panel1.add(tf4);
panel1.add(button1);
frame1.add(panel1);
frame1.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame1.setSize(FRAME_WIDTH, FRAME_HEIGHT);
class portItinerary implements ActionListener
{
public void actionPerformed(ActionEvent e) {
name = tf2.getText();
lat = Double.parseDouble(tf3.getText());
lng = Double.parseDouble(tf4.getText());
}
}
ActionListener listener1 = new portItinerary();
button1.addActionListener(listener1);
frame1.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
for (int i = 0; i < legs; i++)
{
latitudeArr[i] = lat;
longitudeArr[i] = lng;
airportName[i] = name;
}
}
}
package project4;
import java.awt.event.*;
import javax.swing.*;
public class Airport extends MainClass {
public static final double EARTH_RADIUS = 10800 / Math.PI;
public static final double RAD = Math.PI / 180;
// Fields
public static double Lat;
public static double Long;
public static String ID;
public static double Distance;
public static int legs;
public Airport()
{
}
public void setWindow()
{
}
// Mutators
public static void setDistance(double lat1, double long1, double lat2, double long2)
{
// Sin converter
double distance1;
double sinLat1 = lat1 * RAD;
double sinLat2 = lat2 * RAD;
// Cos converter
double cosLat1 = lat1 * RAD;
double cosLat2 = lat2 * RAD;
double cosLong1 = long1 * RAD;
double cosLong2 = long2 * RAD;
// Calculation of the great circle distance based on two coordinates in nautical miles
distance1 = (Math.sin(sinLat1) * Math.sin(sinLat2) + Math.cos(cosLat1) * Math.cos(cosLat2) * Math.cos((cosLong1 - cosLong2)));
Distance = EARTH_RADIUS * Math.acos(distance1);
}
// Accessors
public static double getLat() {return Lat;}
public static double getDistance(){return Distance;}
public static double getLong(){return Long;}
public static String getID() {return ID;}
}
答案 0 :(得分：0)
使用JFrame后，JFrame被处理掉了，我建议在玩窗口可见性时创建新实例
package airportproj;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
public class AirportProj {
public static void main(String[] args) { new AirportProj();}
// Fields
private MainClass mainWindow;
private LegClass legClass;
private int legs, currentLeg;
private double speed;
private double totTime = 0;
private double totDist = 0;
private String[] airportNames;
private double[] latitudes;
private double[] longtitudes;
Airport user;
public AirportProj() {
class legsAndSpeedListener implements ActionListener
{
@Override
public void actionPerformed(ActionEvent e) {
legs = mainWindow.getLegs();
speed = mainWindow.getSpeed();
mainWindow.dispose();
airportNames= new String[legs];
latitudes = new double[legs];
longtitudes = new double[legs];
currentLeg = 0;
class PortItinerary implements ActionListener
{
@Override
public void actionPerformed(ActionEvent e) {
airportNames[currentLeg] = legClass.getAirportName();
latitudes[currentLeg] = legClass.getLatitude();
longtitudes[currentLeg] = legClass.getLongtitude();
legClass.dispose();
if (++currentLeg < legs) {
legClass = new LegClass(new PortItinerary());
}else {
doWhateverYouWantToDoNext();
}
}
}
legClass = new LegClass(new PortItinerary());
}
}
mainWindow = new MainClass(new legsAndSpeedListener());
}
public void doWhateverYouWantToDoNext() {
for (int i = 0; i < legs; i ++) {
System.out.println("Airport Name: " + airportNames[i]);
System.out.println("Latitude: " + latitudes[i]);
System.out.println("Longtitude: " + longtitudes[i]);
}
}
}
class MainClass extends JFrame {
private final int FRAME_WIDTH = 500;
private final int FRAME_HEIGHT = 500;
private JTextField legInput, speedInput;
public MainClass(ActionListener listener) {
// Frame window 1 : Contains Legs and Speed
JPanel container = new JPanel();
JLabel labelLegs = new JLabel("Legs:");
JLabel labelSpeed = new JLabel("Speed:");
legInput = new JTextField(5); // Leg field
speedInput = new JTextField(5); // Speed field
JButton button = new JButton("Ok");
button.addActionListener(listener);
setTitle("Legs and Speed");
setSize(FRAME_WIDTH, FRAME_HEIGHT);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
// Add elements to panel and then to frame
container.add(labelLegs);
container.add(legInput); // Leg field
container.add(labelSpeed);
container.add(speedInput); // Speed field
container.add(button);
add(container);
setVisible(true);
}
public int getLegs() {
return Integer.parseInt(legInput.getText());
}
public double getSpeed() {
return Double.parseDouble(speedInput.getText());
}
}
class LegClass extends JFrame {
private String name;
private final int FRAME_WIDTH = 500;
private final int FRAME_HEIGHT = 500;
private JTextField airportInput, latitudeInput,longtitudeInput;
public LegClass(ActionListener listener) {
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setSize(FRAME_WIDTH, FRAME_HEIGHT);
JLabel airportName = new JLabel("Airport Name:");
JLabel latitude = new JLabel("Latitude:");
JLabel longtitude = new JLabel("Longitude");
JPanel container = new JPanel();
airportInput = new JTextField(5);
latitudeInput = new JTextField(5);
longtitudeInput = new JTextField(5);
JButton okay = new JButton("Ok");
okay.addActionListener(listener);
container.add(airportName);// airport
container.add(airportInput);
container.add(latitude); // latitude
container.add(latitudeInput);
container.add(longtitude); // longtitude
container.add(longtitudeInput);
container.add(okay);
add(container);
setVisible(true);
}
public String getAirportName() {
return airportInput.getText();
}
public double getLatitude() {
return Double.parseDouble(latitudeInput.getText());
}
public double getLongtitude() {
return Double.parseDouble(longtitudeInput.getText());
}
}
我没有碰到机场班，我希望这有帮助！许多代码风格和手段的方式是我的偏好，并且不需要复制任何东西