import java.awt.*;
import java.applet.Applet;

// This appears in Core Web Programming from
// Prentice Hall Publishers, and may be freely used
// or adapted. 1997 Marty Hall, hall@apl.jhu.edu.

/** Position circles down the diagonal so that
 *  their borders just touch. Illustrates that
 *  Java 1.0 components are rectangular and opaque.
 * @see Circle
 */

public class CircleTest2 extends Applet {
  public void init() {
    setBackground(Color.lightGray);
    setLayout(null);
    Circle circle;
    int radius = size().width/6;
    int deltaX =
      round(2.0 * (double)radius / Math.sqrt(2.0));
    for (int x=radius; x<6*radius; x=x+deltaX) {
      circle = new Circle(Color.black, radius);
      add(circle);
      circle.setCenter(x, x);
    }
  }

  private int round(double num) {
    return((int)Math.round(num));
  }
}