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Herbert Spencer, Principles of Sociology, 1857.If it becomes possible to produce. Let us see if we can find somewhere a concrete example: A. Eisenstadt, Rasse und soziale Status (Theorie der Sozialgeschichte. Neue Folge der ersten beiden Bande. S. Identitaeten, Vereine und Konfessionen in ihrer Sozialgeschichte. Jena: E.V. Barth.Q:
Setting up a rotating sequence for a ball that rolls around a circle.
I am trying to make a rotating sequence for a ball that rolls around a circle. I have the ball's x and y coordinates that are constants and a circle radius of 80. My problem is that my code only works for one rotation because the ball position is never reset. Here's what I have so far:
package proj12;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JFrame;
public class BallRotate extends JFrame implements KeyAdapter {
private int xpos;
private int ypos;
private int radius;
private int rt;
private Timer timer;
public BallRotate() {
super("Balls around the Circle");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds(100, 100, 150, 150);
this.setResizable(false);
timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
xpos = xpos - 2;
ypos = ypos - 2;
if (xpos == -radius || ypos == -radius || xpos == radius || ypos ==
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