对于学校的项目，我们有一个简单的停车场模拟器，我们的工作是为这个模拟器添加功能。我正在尝试将GUI添加到模拟器中，以便您可以填写您的值，并且模拟基于这些值进行模拟。但我首先做了一个简单的按钮，从1帧到另一帧，但是当我使用以下代码运行Frame1文件时：
JButton btnSubmit = new JButton("Submit");
btnSubmit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
frame.dispose();
Simulator mysimulator = new Simulator();
mysimulator.run();
}
它没有加载，只是给了我一个空白窗口。
模拟器的视图在以下代码中进行：
//package Parkeersimulator;
import javax.swing.*;
import java.awt.*;
public class SimulatorView extends JFrame {
public JFrame frame;
private CarParkView carParkView;
private int numberOfFloors;
private int numberOfRows;
private int numberOfPlaces;
private int numberOfOpenSpots;
private Car[][][] cars;
public SimulatorView(int numberOfFloors, int numberOfRows, int numberOfPlaces) {
this.numberOfFloors = numberOfFloors;
this.numberOfRows = numberOfRows;
this.numberOfPlaces = numberOfPlaces;
this.numberOfOpenSpots =numberOfFloors*numberOfRows*numberOfPlaces;
cars = new Car[numberOfFloors][numberOfRows][numberOfPlaces];
carParkView = new CarParkView();
Container contentPane = getContentPane();
contentPane.add(carParkView, BorderLayout.CENTER);
pack();
setVisible(true);
updateView();
}
public void updateView() {
carParkView.updateView();
}
public int getNumberOfFloors() {
return numberOfFloors;
}
public int getNumberOfRows() {
return numberOfRows;
}
public int getNumberOfPlaces() {
return numberOfPlaces;
}
public int getNumberOfOpenSpots(){
return numberOfOpenSpots;
}
public Car getCarAt(Location location) {
if (!locationIsValid(location)) {
return null;
}
return cars[location.getFloor()][location.getRow()][location.getPlace()];
}
public boolean setCarAt(Location location, Car car) {
if (!locationIsValid(location)) {
return false;
}
Car oldCar = getCarAt(location);
if (oldCar == null) {
cars[location.getFloor()][location.getRow()][location.getPlace()] = car;
car.setLocation(location);
numberOfOpenSpots--;
return true;
}
return false;
}
public Car removeCarAt(Location location) {
if (!locationIsValid(location)) {
return null;
}
Car car = getCarAt(location);
if (car == null) {
return null;
}
cars[location.getFloor()][location.getRow()][location.getPlace()] = null;
car.setLocation(null);
numberOfOpenSpots++;
return car;
}
public Location getFirstFreeLocation() {
for (int floor = 0; floor < getNumberOfFloors(); floor++) {
for (int row = 0; row < getNumberOfRows(); row++) {
for (int place = 0; place < getNumberOfPlaces(); place++) {
Location location = new Location(floor, row, place);
if (getCarAt(location) == null) {
return location;
}
}
}
}
return null;
}
public Car getFirstLeavingCar() {
for (int floor = 0; floor < getNumberOfFloors(); floor++) {
for (int row = 0; row < getNumberOfRows(); row++) {
for (int place = 0; place < getNumberOfPlaces(); place++) {
Location location = new Location(floor, row, place);
Car car = getCarAt(location);
if (car != null && car.getMinutesLeft() <= 0 && !car.getIsPaying()) {
return car;
}
}
}
}
return null;
}
public void tick() {
for (int floor = 0; floor < getNumberOfFloors(); floor++) {
for (int row = 0; row < getNumberOfRows(); row++) {
for (int place = 0; place < getNumberOfPlaces(); place++) {
Location location = new Location(floor, row, place);
Car car = getCarAt(location);
if (car != null) {
car.tick();
}
}
}
}
}
private boolean locationIsValid(Location location) {
int floor = location.getFloor();
int row = location.getRow();
int place = location.getPlace();
if (floor < 0 || floor >= numberOfFloors || row < 0 || row > numberOfRows || place < 0 || place > numberOfPlaces) {
return false;
}
return true;
}
private class CarParkView extends JPanel {
private Dimension size;
private Image carParkImage;
/**
* Constructor for objects of class CarPark
*/
public CarParkView() {
size = new Dimension(0, 0);
}
/**
* Overridden. Tell the GUI manager how big we would like to be.
*/
public Dimension getPreferredSize() {
return new Dimension(800, 500);
}
/**
* Overriden. The car park view component needs to be redisplayed. Copy the
* internal image to screen.
*/
public void paintComponent(Graphics g) {
if (carParkImage == null) {
return;
}
Dimension currentSize = getSize();
if (size.equals(currentSize)) {
g.drawImage(carParkImage, 0, 0, null);
}
else {
// Rescale the previous image.
g.drawImage(carParkImage, 0, 0, currentSize.width, currentSize.height, null);
}
}
public void updateView() {
// Create a new car park image if the size has changed.
if (!size.equals(getSize())) {
size = getSize();
carParkImage = createImage(size.width, size.height);
}
Graphics graphics = carParkImage.getGraphics();
for(int floor = 0; floor < getNumberOfFloors(); floor++) {
for(int row = 0; row < getNumberOfRows(); row++) {
for(int place = 0; place < getNumberOfPlaces(); place++) {
Location location = new Location(floor, row, place);
Car car = getCarAt(location);
Color color = car == null ? Color.white : car.getColor();
drawPlace(graphics, location, color);
}
}
}
repaint();
}
/**
* Paint a place on this car park view in a given color.
*/
private void drawPlace(Graphics graphics, Location location, Color color) {
graphics.setColor(color);
graphics.fillRect(
location.getFloor() * 260 + (1 + (int)Math.floor(location.getRow() * 0.5)) * 75 + (location.getRow() % 2) * 20,
60 + location.getPlace() * 10,
20 - 1,
10 - 1); // TODO use dynamic size or constants
}
}
}
和simultion self在以下代码中进行：
//package Parkeersimulator;
import java.util.Random;
import javax.swing.*;
public class Simulator {
private static final String AD_HOC = "1";
private static final String PASS = "2";
private CarQueue entranceCarQueue;
private CarQueue entrancePassQueue;
private CarQueue paymentCarQueue;
private CarQueue exitCarQueue;
private SimulatorView simulatorView;
private int day = 0;
private int hour = 0;
private int minute = 0;
private int tickPause = 100;
int weekDayArrivals= 100; // average number of arriving cars per hour
int weekendArrivals = 200; // average number of arriving cars per hour
int weekDayPassArrivals= 50; // average number of arriving cars per hour
int weekendPassArrivals = 5; // average number of arriving cars per hour
int enterSpeed = 3; // number of cars that can enter per minute
int paymentSpeed = 7; // number of cars that can pay per minute
int exitSpeed = 5; // number of cars that can leave per minute
public static void main(String[] args){
Simulator mySimulator = new Simulator();
mySimulator.run();
}
public Simulator() {
entranceCarQueue = new CarQueue();
entrancePassQueue = new CarQueue();
paymentCarQueue = new CarQueue();
exitCarQueue = new CarQueue();
simulatorView = new SimulatorView(3, 6, 30);
}
public void run() {
for (int i = 0; i < 10000; i++) {
tick();
}
}
private void tick() {
advanceTime();
handleExit();
updateViews();
// Pause.
try {
Thread.sleep(tickPause);
} catch (InterruptedException e) {
e.printStackTrace();
}
handleEntrance();
}
private void advanceTime(){
// Advance the time by one minute.
minute++;
while (minute > 59) {
minute -= 60;
hour++;
}
while (hour > 23) {
hour -= 24;
day++;
}
while (day > 6) {
day -= 7;
}
}
private void handleEntrance(){
carsArriving();
carsEntering(entrancePassQueue);
carsEntering(entranceCarQueue);
}
private void handleExit(){
carsReadyToLeave();
carsPaying();
carsLeaving();
}
private void updateViews(){
simulatorView.tick();
// Update the car park view.
simulatorView.updateView();
}
private void carsArriving(){
int numberOfCars=getNumberOfCars(weekDayArrivals, weekendArrivals);
addArrivingCars(numberOfCars, AD_HOC);
numberOfCars=getNumberOfCars(weekDayPassArrivals, weekendPassArrivals);
addArrivingCars(numberOfCars, PASS);
}
private void carsEntering(CarQueue queue){
int i=0;
// Remove car from the front of the queue and assign to a parking space.
while (queue.carsInQueue()>0 &&
simulatorView.getNumberOfOpenSpots()>0 &&
i<enterSpeed) {
Car car = queue.removeCar();
Location freeLocation = simulatorView.getFirstFreeLocation();
simulatorView.setCarAt(freeLocation, car);
i++;
}
}
private void carsReadyToLeave(){
// Add leaving cars to the payment queue.
Car car = simulatorView.getFirstLeavingCar();
while (car!=null) {
if (car.getHasToPay()){
car.setIsPaying(true);
paymentCarQueue.addCar(car);
}
else {
carLeavesSpot(car);
}
car = simulatorView.getFirstLeavingCar();
}
}
private void carsPaying(){
// Let cars pay.
int i=0;
while (paymentCarQueue.carsInQueue()>0 && i < paymentSpeed){
Car car = paymentCarQueue.removeCar();
// TODO Handle payment.
carLeavesSpot(car);
i++;
}
}
private void carsLeaving(){
// Let cars leave.
int i=0;
while (exitCarQueue.carsInQueue()>0 && i < exitSpeed){
exitCarQueue.removeCar();
i++;
}
}
private int getNumberOfCars(int weekDay, int weekend){
Random random = new Random();
// Get the average number of cars that arrive per hour.
int averageNumberOfCarsPerHour = day < 5
? weekDay
: weekend;
// Calculate the number of cars that arrive this minute.
double standardDeviation = averageNumberOfCarsPerHour * 0.3;
double numberOfCarsPerHour = averageNumberOfCarsPerHour + random.nextGaussian() * standardDeviation;
return (int)Math.round(numberOfCarsPerHour / 60);
}
private void addArrivingCars(int numberOfCars, String type){
// Add the cars to the back of the queue.
switch(type) {
case AD_HOC:
for (int i = 0; i < numberOfCars; i++) {
entranceCarQueue.addCar(new AdHocCar());
}
break;
case PASS:
for (int i = 0; i < numberOfCars; i++) {
entrancePassQueue.addCar(new ParkingPassCar());
}
break;
}
}
private void carLeavesSpot(Car car){
simulatorView.removeCarAt(car.getLocation());
exitCarQueue.addCar(car);
}
}
请注意我刚刚开始编程，而我几乎没有任何知识。
答案 0 :(得分：0)
您需要将按钮添加到面板。
JPanel panel = new JPanel();
JButton btnSubmit = new JButton("Submit");
Container content = this.getContentPane(); // Get the content pane
content.add(panel, BorderLayout.CENTER);
content.add(btnSubmit, BorderLayout.SOUTH);
setVisible(true); // Display the window