JFrame中的Java小程序出现图形故障?
因此,我尝试将一个弹球游戏作为小程序加载到JFrame中。小程序加载到它没有问题,但当我运行它闪烁和故障了。提前谢谢 Jframe类:JFrame中的Java小程序出现图形故障?,java,swing,applet,jframe,Java,Swing,Applet,Jframe,因此,我尝试将一个弹球游戏作为小程序加载到JFrame中。小程序加载到它没有问题,但当我运行它闪烁和故障了。提前谢谢 Jframe类: import javax.swing.*; import java.awt.*; import java.applet.*; public class PinBallGUI extends JFrame { public static void main(String[] args) { JFrame frame = new J
import javax.swing.*;
import java.awt.*;
import java.applet.*;
public class PinBallGUI extends JFrame
{
public static void main(String[] args)
{
JFrame frame = new JFrame("Pinball");
frame.setVisible(true);
frame.setSize(600,700);
int height = 700;
int width = 600;
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
PinBallGame temp = new PinBallGame();
frame.add(temp);
temp.init(width,height);
temp.start();
temp.run();
}
}
小程序类:
import java.awt.*;
import javax.swing.*;
import java.applet.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class PinBallGame extends Applet implements Runnable
{
Thread runner;
private Image Buffer;
private Graphics gBuffer;
int width,height;
PinBallBall B1;
PinBallPaddle P1,P2;
PinBallRectangle R1,R2,R3,R4;
PinBallRectangle[] rArray;
boolean leftKey;
boolean rightKey;
boolean downKey;
boolean spaceKey;
int points;
Random gen = new Random();
public void init(int W,int H)
{
width=W;
height=H;
Buffer=createImage(width,height);
gBuffer=Buffer.getGraphics();
B1 = new PinBallBall(-1,width-57,645);
P1 = new PinBallPaddle(180,625,255,640);
P2 = new PinBallPaddle(300,640,375,625);
R1 = new PinBallRectangle(1,width-35,60,15,600);
R2 = new PinBallRectangle(1,width-80,60,15,600);
R3 = new PinBallRectangle(1,0,625,180,40);
R4 = new PinBallRectangle(1,375,625,140,40);
rArray = new PinBallRectangle[5];
for(int i=0; i<rArray.length; i++)
{
rArray[i] = new PinBallRectangle(-1,gen.nextInt(450),gen.nextInt(450),gen.nextInt(60),gen.nextInt(60));
}
int count = 0;
addKeyListener(new MyKeyListener());
points = 0;
}
private class MyKeyListener extends KeyAdapter
{
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;
case KeyEvent.VK_DOWN:
downKey = 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;
case KeyEvent.VK_DOWN:
downKey = false;
break;
}
}
}
public void start()
{
if (runner == null)
{
runner = new Thread (this);
runner.start();
}
}
public void stop()
{
runner = null;
}
public void run()
{
while(true)
{
update(gBuffer);
if(leftKey){P1.moveLeftPaddle();}
if(rightKey){P2.moveRightPaddle();}
if(downKey){B1.launchBall(width,height);}
repaint();
try {runner.sleep(25);}
catch (Exception e) { }
repaint();
gBuffer.setColor(Color.black);
gBuffer.fillRect(0,0,width,height);
if((B1.getX() != width-57)||(B1.getY() != 645))
{
B1.movePinBallBall(width,height);
B1.update();
}
R1.ballCollision(B1);
repaint();
R2.ballCollision(B1);
repaint();
R3.ballCollision(B1);
repaint();
R4.ballCollision(B1);
repaint();
P1.ballCollision(B1);
repaint();
P2.ballCollision(B1);
repaint();
for(int i=0; i<rArray.length; i++)
{
rArray[i].ballCollision(B1);
repaint();
}
for(int i=0; i<rArray.length; i++)
{
rArray[i].paint(gBuffer);
}
update(gBuffer);
B1.paint(gBuffer);
R1.paint(gBuffer);
R2.paint(gBuffer);
R3.paint(gBuffer);
R4.paint(gBuffer);
P1.paint(gBuffer);
P2.paint(gBuffer);
repaint();
update(gBuffer);
}//while(true)
} //run
public void update(Graphics g)
{
paint(g);
}
public void paint(Graphics g)
{
g.drawImage(Buffer,0,0, this);
}
}
import java.awt.*;
导入javax.swing.*;
导入java.applet.*;
导入java.util.*;
导入java.awt.*;
导入java.awt.event.*;
导入javax.swing.*;
导入javax.swing.event.*;
公共类Pinball游戏扩展小程序实现可运行
{
螺纹流道;
专用图像缓冲区;
私人图形gBuffer;
int宽度、高度;
弹球B1;
弹球桨P1、P2;
针形矩形R1、R2、R3、R4;
弹珠状;
布尔左键;
布尔右键;
布尔键;
布尔空格键;
积分;
Random gen=新的Random();
公共无效初始值(整数W,整数H)
{
宽度=W;
高度=H;
缓冲区=createImage(宽度、高度);
gBuffer=Buffer.getGraphics();
B1=新弹球(-1,宽度-57645);
P1=新的弹球拨杆(18062525640);
P2=新的弹球拨杆(300640375625);
R1=新的销球矩形(1,宽度-35,60,15600);
R2=新的销球矩形(1,宽度-80,60,15600);
R3=新的销球矩形(1,0625180,40);
R4=新的销球矩形(1375625140,40);
rArray=新的弹球矩形[5];
对于(int i=0;i您将希望使用JFrame和JPanel或Frame和Canvas,而不是使用JFrame和小程序。您肯定可以混合和匹配组件,但如果不这样做,可能会遇到较少的bug
我通常发现在不使用双缓冲时会出现闪烁现象。对于JPanel,您希望启用双缓冲,对于画布,如果确实需要,有一种方法可以实现三缓冲,但在大多数情况下,请坚持使用JPanel。加载到JFrame中的小程序--为什么要这样做?您混合了重缓冲和轻缓冲ht权重组件,似乎永远不会有好的结局1)为什么要编写小程序?如果是因为老师指定了它,请参考它们。2)为什么要使用AWT?有关放弃AWT使用组件而支持Swing的许多好理由,请参阅。如果这有助于解决问题,请参阅。