窗口屏幕闪烁有关问题
日期：2014-05-20 浏览次数：20955 次
窗口屏幕闪烁问题
编写个下雪的程序，但是界面闪烁不停，谁能帮我改正一下，万分感激！
------解决方案--------------------
编写个下雪的程序，但是界面闪烁不停，谁能帮我改正一下，万分感激！
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Table extends Frame implements ActionListener
{
Button start=new Button("开始");
int[] xx = new int [100];
int[] yy = new int [100];
int[]fs1 = new int [100];
Font fs = null;
public Table()
{
super("雪花飞");
setSize(1200,800);
setBackground(Color.black);
//setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
setLayout(new FlowLayout());
add(start);
start.addActionListener(this);
validate();
addWindowListener(new WindowAdapter()
{
public void windowClosing (WindowEvent e){System.exit(0);}
});
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==start)begin();
}
public void begin()
{
for(int i=0;i<xx.length;i++)
{
xx[i]=(int)(1200*Math.random());
yy[i]=(int)(800*Math.random());
fs1[i]=(int)(20*Math.random()+12);
}
new Thread(){
public void run()
{
while(true)
{
for(int i=0;i<xx.length;i++)
{
if((yy[i]>800)||(yy[i]<0))yy[i] =0;
yy[i]++;
}
repaint();
try{ Thread.sleep(10);} catch(InterruptedException e)
{System.err.println("Thread interrupted");}
}
}
}.start();
}
public void paint(Graphics g)
{
super.paint(g);
Image img=new ImageIcon("11.jpg" ).getImage();
g.drawImage(img,0,0,1200,800,null);
for(int i=0;i<xx.length;i++)
{
Font fs =new Font("宋体",Font.BOLD,fs1[i]);
g.setColor(Color.white);
g.setFont(fs);
g.drawString("*",xx[i],yy[i]);//画雪花
}
}
public static void main(String args[])
{
new Table();
}
}
java
闪屏
求解
------解决方案--------------------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Table extends Frame implements ActionListener {
Button start = new Button("开始");
int[] xx = new int[100];
int[] yy = new int[100];
int[] fs1 = new int[100];
Font fs = null;
Image offScreen = null;
public Table() {
super("雪花飞");
setSize(1200, 800);
//setBackground(Color.black);
// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
setLayout(new FlowLayout());
add(start);
start.addActionListener(this);
validate();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == start)
begin();
}
public void begin() {
for (int i = 0; i < xx.length; i++) {
xx[i] = (int) (1200 * Math.random());
yy[i] = (int) (800 * Math.random());
fs1[i] = (int) (20 * Math.random() + 12);
}
new Thread() {
public void run() {
while (true) {
repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
System.err.println("Thread interrupted");
}
}
}
}.start();
}
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.BLACK);
g.fillRect(0, 0, 1200, 800);
//Image img = new ImageIcon("11.jpg").getImage();
//g.drawImage(img, 0, 0, 1200, 800, null);
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