你想要做的是使用Car
對象的數據結構,並在paintComonent
方法中遍歷它們。像
List<Car> cars = new ArrayList<>();
....
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
for (Car car : cars) {
car.drawCar(g);
}
}
的drawCar
方法的東西會來自你的Car
類
public class Car {
int x, y;
public Car(int x, int y) {
this.x = x;
this.y = y;
}
public void drawCar(Graphics g) {
g.setColor(Color.BLACK);
// do everything here as you would in a paintComponent method
}
}
查看更多例子here和here和here和here和here和here。
UPDATE
下面是一個簡單的例子,用一些「法拉利」我颳起,也採用了一些動畫,但具有相同的基本點,我有以上。

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
public class DrawCar extends JPanel{
private static final int D_W = 400;
private static final int D_H = 400;
List<Car> cars;
public DrawCar() {
cars = new ArrayList<>();
cars.add(new Car(100, 300));
cars.add(new Car(200, 100));
Timer timer = new Timer(50, new ActionListener(){
public void actionPerformed(ActionEvent e) {
for (Car car : cars) {
car.move();
repaint();
}
}
});
timer.start();
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
for (Car car : cars) {
car.drawCar(g);
}
}
@Override
public Dimension getPreferredSize() {
return new Dimension(D_W, D_H);
}
public class Car {
private static final int INCREMENT = 5;
int x, y;
public Car(int x, int y) {
this.x = x;
this.y = y;
}
public void drawCar(Graphics g) {
g.setColor(Color.BLUE);
g.fillRect(x, y, 100, 30);
g.setColor(Color.BLACK); // body
g.fillOval(x + 15, y + 20, 15, 15); // wheel
g.fillOval(x + 60, y + 20, 15, 15); // wheel
g.fillRect(x + 15, y - 20, 60, 20); // top
}
public void move() {
if (x == D_W) {
x = 0;
} else {
x += INCREMENT;
}
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
frame.add(new DrawCar());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
謝謝,這對我幫助非常大! :) – MathMajor
看到我的**更新**與一些動畫:) –
那麼,你設法讓我的程序,我試圖在約10分鐘的最後2小時!哇!哈哈,並感謝:) – MathMajor