所以我有这个项目，我正在研究用户可以在5个游戏中进行选择的地方。每当我点击一个按钮来玩该游戏时，它就不会加载游戏。请提前帮助谢谢！
主JFrame类：
import javax.swing.UIManager.LookAndFeelInfo;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import javax.swing.border.Border;
import java.io.RandomAccessFile;
import javax.swing.*;
import java.awt.BorderLayout;
import java.io.IOException;
import java.util.*;
import java.io.*;
public class JavaGames extends JFrame
{
private JMenuBar menuBar;
public static int height;
public static int width;
private JTextField test;
private JButton BrickBreaker;
private JButton Exit;
private JButton Trapped;
private JButton PacMan;
private JButton PinBall;
private JButton Pong;
private JTextField textfield1;
private JPanel contentPane;
public JavaGames() throws IOException
{
this.setTitle("Application Project");
this.setSize(449,350);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
height = screenSize.height;
width = screenSize.width;
generateMenu();
this.setJMenuBar(menuBar);
contentPane = new JPanel(null);
contentPane.setPreferredSize(new Dimension(500,400));
contentPane.setBackground(new Color(192,192,192));
BrickBreaker = new JButton();
BrickBreaker.setBounds(108,69,95,35);
BrickBreaker.setBackground(new Color(214,217,223));
BrickBreaker.setForeground(new Color(0,0,0));
BrickBreaker.setEnabled(true);
BrickBreaker.setFont(new Font("SansSerif",0,11));
BrickBreaker.setText("Brick Breaker");
BrickBreaker.setVisible(true);
BrickBreaker.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
BrickBreaker(evt);
}
});
Exit = new JButton();
Exit.setBounds(219,175,95,35);
Exit.setBackground(new Color(214,217,223));
Exit.setForeground(new Color(0,0,0));
Exit.setEnabled(true);
Exit.setFont(new Font("sansserif",0,12));
Exit.setText("Exit");
Exit.setVisible(true);
Exit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Exit(evt);
}
});
Trapped = new JButton();
Trapped.setBounds(219,69,95,35);
Trapped.setBackground(new Color(214,217,223));
Trapped.setForeground(new Color(0,0,0));
Trapped.setEnabled(true);
Trapped.setFont(new Font("SansSerif",0,12));
Trapped.setText("Trapped");
Trapped.setVisible(true);
Trapped.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Trapped(evt);
}
});
PacMan = new JButton();
PacMan.setBounds(219,120,95,35);
PacMan.setBackground(new Color(214,217,223));
PacMan.setForeground(new Color(0,0,0));
PacMan.setEnabled(true);
PacMan.setFont(new Font("SansSerif",0,11));
PacMan.setText("Pac Man Demo");
PacMan.setVisible(true);
PacMan.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
PacMan(evt);
}
});
PinBall = new JButton();
PinBall.setBounds(108,175,95,35);
PinBall.setBackground(new Color(214,217,223));
PinBall.setForeground(new Color(0,0,0));
PinBall.setEnabled(true);
PinBall.setFont(new Font("sansserif",0,12));
PinBall.setText("Pin Ball");
PinBall.setVisible(true);
PinBall.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt)
{
try{
PinBall(evt);
}catch( IOException io ) {}
}
});
Pong = new JButton();
Pong.setBounds(108,120,95,35);
Pong.setBackground(new Color(214,217,223));
Pong.setForeground(new Color(0,0,0));
Pong.setEnabled(true);
Pong.setFont(new Font("sansserif",0,12));
Pong.setText("Pong");
Pong.setVisible(true);
Pong.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Pong(evt);
}
});
textfield1 = new JTextField();
textfield1.setBounds(160,12,100,49);
textfield1.setBackground(new Color(255,255,255));
textfield1.setForeground(new Color(0,0,0));
textfield1.setEnabled(false);
textfield1.setFont(new Font("SansSerif",0,18));
textfield1.setText("Welcome!");
textfield1.setVisible(true);
contentPane.add(BrickBreaker);
contentPane.add(Exit);
contentPane.add(Trapped);
contentPane.add(PacMan);
contentPane.add(PinBall);
contentPane.add(Pong);
contentPane.add(textfield1);
this.add(contentPane);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.pack();
this.setVisible(true);
}
public static String[] q = new String[1];
private void BrickBreaker(ActionEvent evt)
{
BrickGUI temp = new BrickGUI();
temp.main(q);
}
private void Exit (ActionEvent evt)
{
int n=0;
System.exit(n);
}
private void Trapped(ActionEvent evt)
{
TrappedGUI run = new TrappedGUI();
run.main(q);
}
private void PacMan (ActionEvent evt)
{
PacManGUI run = new PacManGUI();
run.main(q);
}
private void PinBall (ActionEvent evt) throws IOException
{
PinBallGUI run = new PinBallGUI();
run.main(q);
}
private void Pong (ActionEvent evt)
{
PongGUI run = new PongGUI();
run.main(q);
}
public void generateMenu()
{
menuBar = new JMenuBar();
JMenu file = new JMenu("File");
JMenu tools = new JMenu("Tools");
JMenuItem openHS = new JMenuItem("High Scores");
JMenuItem save = new JMenuItem("Save");
JMenuItem exit = new JMenuItem("Exit");
JMenuItem about = new JMenuItem("About");
file.add(openHS);
file.add(save);
file.add(about);
file.addSeparator();
file.add(exit);
menuBar.add(file);
openHS.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0){
//HighScores run = new HighScores();
//run.main(q);
}
});
exit.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0){
int n = 0;
System.exit(n);
}
});
about.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0){
//about action
}
});
}
public static void main(String[] args){
System.setProperty("swing.defaultlaf", "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
try{
new JavaGames();
}catch( IOException io ) {}
}
});
}
}
加载游戏的JFrame类：
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class BrickGUI extends JFrame
{
public BrickGUI()
{
BrickGame gui = new BrickGame();
this.setSize(600,600+20);
this.setTitle("Brick Breaker");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setVisible(true);
this.getContentPane().add(new BrickGame());
this.add(gui);
gui.init(600,600);
gui.start();
gui.run();
}
public static void main(String[] args)
{
new BrickGUI();
}
}
绘制游戏的类等：
import java.awt.*;
import javax.swing.*;
import java.applet.*;
import java.util.*;
import java.io.*;
import java.awt.event.*;
import java.awt.event.KeyListener;
public class BrickGame extends JPanel implements Runnable,KeyListener
{
Thread runner;
private Image Buffer;
private Graphics gBuffer;
private char c = 'e';
int width,height;
BrickBall B1;
ArrayList BrickBallList;
BrickBall temp,temp2;
ArrayList bricks;
BrickRectangle rTemp;
int bx,by,bw,bh;
BrickRectangle R1,R2;
boolean leftKey;
boolean rightKey;
boolean spaceKey;
Paddle p;
int points;
public void init(int W,int H)
{
width=590;
height=590;
Buffer=createImage(width,height);
gBuffer=Buffer.getGraphics();
B1 = new BrickBall(-1);
p = new Paddle();
bricks = new ArrayList();
bx = 5;
by = 5;
bw = 20;
bh = 10;
int count = 0;
for(int i = 0; i < 160;i++)
{
rTemp = new BrickRectangle(bx,by,bw,bh,0,0);
bx = bx + 25;
count++;
if(count == 32)
{
by = by + 15;
bx = 5;
count = 0;
}
bricks.add(rTemp);
}
addKeyListener(this);
points = 0;
}
public void start()
{
if (runner == null)
{
runner = new Thread (this);
runner.start();
}
}
public void stop()
{
runner = null;
}
public void run()
{
while(true)
{
if(rightKey){p.moveRight();}
if(leftKey){p.moveLeft();}
repaint();
try {runner.sleep(25);}
catch (Exception e) { }
gBuffer.setColor(Color.black);
gBuffer.fillRect(0,0,width,height);
B1.moveBrickBall(width,height);
p.ballCollision(B1);
for(int j = 0; j < bricks.size();j++)
{
rTemp = (BrickRectangle)bricks.get(j);
if(rTemp.BrickBallCollision(B1))
{
bricks.remove(j);
points = points + 1;
break;
}
}
String P = String.valueOf(points);
gBuffer.setColor(Color.blue);
gBuffer.setFont(new Font("Calibri",20,60));
gBuffer.drawString(P,0,540);
for(int i = 0; i < bricks.size();i++)
{
rTemp = (BrickRectangle)bricks.get(i);
rTemp.paint(gBuffer);
}
B1.paint(gBuffer);
p.paint(gBuffer);
if(B1.getY()>height)
{
String s1 = "Game Over";
String s2 = "You Lose!";
String s3 = "You got " +points +" Points";
String s4 = "Hit space key to continue";
gBuffer.drawString(s1,50,90);
gBuffer.drawString(s2,50,160);
gBuffer.drawString(s3,50,230);
gBuffer.setFont(new Font("Calibri",20,50));
gBuffer.drawString(s4,50,300);
BrickHS temp = new BrickHS();
try{
boolean t = temp.checkHS(points);
if(t)
{
gBuffer.drawString("New High Score",50,360);
}
}catch( IOException io ) {}
if(spaceKey){System.exit(1);}
}
repaint();
}//while(true)
} //run
public void update(Graphics g)
{
paint(g);
}
public void paint(Graphics g)
{
g.drawImage(Buffer,0,0, this);
}
public void addNotify()
{
super.addNotify();
requestFocus();
}
public void keyPressed(KeyEvent e)
{
switch(e.getKeyCode())
{
case KeyEvent.VK_LEFT:
leftKey = true;
break;
case KeyEvent.VK_RIGHT:
rightKey = true;
break;
case KeyEvent.VK_SPACE:
spaceKey = true;
break;
}
}
public void keyReleased(KeyEvent e)
{
switch(e.getKeyCode())
{
case KeyEvent.VK_LEFT:
leftKey = false;
break;
case KeyEvent.VK_RIGHT:
rightKey = false;
break;
case KeyEvent.VK_SPACE:
spaceKey = false;
break;
}
}
public void keyTyped(KeyEvent e)
{
c = e.getKeyChar();
repaint();
}
}
还有一些其他类与这个游戏一起，但那些主要是为了制作对象而不是。再次感谢！
答案 0 :(得分：2)
每当创建一个BrickGame时，它会通过调用run进入无限循环 - 这发生在Event Dispatch Thread (EDT)上并导致冻结的用户界面，因为EDT无法绘制，创建事件，等等...您的代码通过调用start开始新线程 - 没有理由对run进行额外调用。
其他一些建议：
paintComponent而不是paint super.paintComponent作为（1）update，也不应覆盖addNotify null将不会停止线程 - 而是使用一个标记while循环终止的标志（此标志可能需要声明为volatile）。 null布局 - 使用适当的LayoutManager