我已经创建了一个对象的代码，可以从一个点移动到另一个点。现在我需要帮助一件事。条件是程序应该提示用户提出问题，如果用户正确地回答了问题，那么点应该移动，否则点不应该移动，它应该显示下一个问题，这将持续到10个问题全部结束。如果用户到达另一端他赢了，否则他输了。这是点从点到点移动的代码。
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Ellipse2D;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
private Long startTime;
private long playTime = 2000;
private Point startPoint, endPoint;
private Point pointOnTimeLine;
private double pointInTime; // For rendering...
public TestPane() {
startPoint = new Point(0, 95);
endPoint = new Point(190, 95);
pointOnTimeLine = new Point(startPoint);
Timer timer = new Timer(40, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (startTime == null) {
startTime = System.currentTimeMillis();
}
long now = System.currentTimeMillis();
long diff = now - startTime;
if (diff >= playTime) {
diff = playTime;
((Timer) e.getSource()).stop();
}
double i = (double) diff / (double) playTime;
pointInTime = i;
pointOnTimeLine.x = (int) (startPoint.x + ((endPoint.x - startPoint.x) * i));
pointOnTimeLine.y = (int) (startPoint.y + ((endPoint.y - startPoint.y) * i));
repaint();
}
});
timer.start();
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g.create();
g2d.setColor(Color.RED);
g2d.fill(new Ellipse2D.Double(startPoint.x, startPoint.y, 10, 10));
g2d.fill(new Ellipse2D.Double(endPoint.x, endPoint.y, 10, 10));
g2d.setColor(Color.GREEN);
g2d.fill(new Ellipse2D.Double(pointOnTimeLine.x, pointOnTimeLine.y, 10, 10));
g2d.dispose();
}
}
}
这是我用来获取用户输入的代码
import javax.swing.*;
public class input1
{
public static void main(String args[])
{
String str1 = JOptionPane.showInputDialog("france has how many varieties of cheese ? a: 100 b: 200 c: 250");
if(str1.equals("c"))
{
JOptionPane.showMessageDialog( null, "good job ", "answer", JOptionPane.INFORMATION_MESSAGE);
}
else
{
JOptionPane.showMessageDialog( null, "sorry try again ", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
}
请帮帮我。提前谢谢
答案 0 :(得分：1)
import javax.swing.*;
import java.awt.*;
public class td {
public static void main(String[] args) {
JFrame frame = new JFrame("Train Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(800, 400);
frame.setLocationRelativeTo(null);
frame.add(new TrainCanvas());
frame.setVisible(true);
}
}
class TrainCanvas extends JComponent {
private int lastX = 0;
public TrainCanvas() {
Thread animationThread = new Thread(new Runnable() {
public void run() {
while(true)
{
String str1 = JOptionPane.showInputDialog("france has how many varieties of cheese ? a: 100 b: 200 c: 250");
if(str1.equals("c"))
{
repaint();
try {Thread.sleep(100);} catch (Exception ex) {}
String str2 = JOptionPane.showInputDialog("where did noodles originate ? a: India b: Italy c: China");
if(str2.equals("b"))
{
repaint();
try {Thread.sleep(100);} catch (Exception ex) {}
String str3 = JOptionPane.showInputDialog("which place is famous for good chocolate ? a: switzerland b: Germany c: China");
if(str3.equals("a"))
{
repaint();
try {Thread.sleep(100);} catch (Exception ex) {}
String str4 = JOptionPane.showInputDialog("what is the staple food of India ? a: rice b: bread c: roti");
if(str4.equals("a"))
{
repaint();
try {Thread.sleep(100);} catch (Exception ex) {}
String str5 = JOptionPane.showInputDialog("where did ice cream originate ? a: greenland b: china c: korea");
if(str5.equals("b"))
{
repaint();
try {Thread.sleep(100);} catch (Exception ex) {}
JOptionPane.showMessageDialog( null, "GOOD JOB!!! LEVEL COMPLETE ", "answer", JOptionPane.INFORMATION_MESSAGE);
break;
}
else
{
JOptionPane.showMessageDialog( null, "GAME OVER (restarting...) ", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
else
{
JOptionPane.showMessageDialog( null, "GAME OVER (restarting...) ", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
else
{
JOptionPane.showMessageDialog( null, "GAME OVER (restarting...) ", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
else
{
JOptionPane.showMessageDialog( null, "GAME OVER (restarting...)", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
else
{
JOptionPane.showMessageDialog( null, "GAME OVER (restarting...)", "answer", JOptionPane.INFORMATION_MESSAGE);
}
}
}
});
animationThread.start();
}
public void paintComponent(Graphics g) {
Graphics2D gg = (Graphics2D) g;
int w = getWidth();
int h = getHeight();
int trainW = 100;
int trainH = 10;
int trainSpeed = 30;
int x = lastX + trainSpeed;
gg.setColor(Color.BLACK);
gg.fillRect(x, h/2 + trainH, trainW, trainH);
lastX = x;
}
}
感谢你的帮助......