import java.awt.*;
import java.applet.Applet;
/** Position circles down the diagonal so that their borders
* just touch. Illustrates that AWT components are
* rectangular and opaque.
*/
public class CircleTest2 extends Applet {
public void init() {
setBackground(Color.lightGray);
setLayout(null); // Turn off layout manager.
Circle circle;
int radius = getSize().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));
}
}
*********************************
Circle.java
*********************************
import java.awt.*;
/** A Circle component built using a Canvas.
*
*/
public class Circle extends Canvas {
private int width, height;
public Circle(Color foreground, int radius) {
setForeground(foreground);
width = 2*radius;
height = 2*radius;
setSize(width, height);
}
public void paint(Graphics g) {
g.fillOval(0, 0, width, height);
}
public void setCenter(int x, int y) {
setLocation(x - width/2, y - height/2);
}
}
*****************************
Note: Brought from our old site: http://www.salearningschool.com/example_codes/ on Jan 2nd, 2017 From: http://sitestree.com/?p=10321
Categories:Programming Code Examples, Java/J2EE/J2ME, AWT Components
Tags:Java/J2EE/J2MEAWT Components
Post Data:2017-01-02 16:04:31
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