import java.awt.*;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.util.Random;
import javax.swing.JFrame;
public class SleepMethodTest extends Frame{
/**
*
*/
private static final long serialVersionUID = 1L;
private Thread t ;
private static Color[] color = {Color.BLACK,Color.BLUE,Color.CYAN,Color.GREEN,Color.ORANGE,Color.YELLOW,Color.RED,Color.PINK,Color.LIGHT_GRAY};
private static final Random rand = new Random();
private static Color getC() {
return color[rand.nextInt(color.length)];
}
public SleepMethodTest() {
t = new Thread(new Runnable() {
int x = 30;
int y = 50;
@Override
public void run() {
while(true) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Graphics graphics = getGraphics();
graphics.setColor(getC());
graphics.drawLine(x, y, 100, y++);
if(y>=80) {
y = 50;
}
}
}
});
t.start();
}
public static void main(String[] args) {
init(new SleepMethodTest(),100,100);
}
public static void init(JFrame frame ,int width, int height) {
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(width, height);
frame.setVisible(true);
}
}