Thread: My bullseye won't show

I'm working on a java assignment that requires me to draw a bullseye using Java.
I think the code is straight, but it would draw anything--it just gives me a blank screen.

Any help is appreciated

Drawing the bullseye

//Jeremiah A. Walker
//Bullseye
 
import java.awt.*;
import javax.swing.*;
 
 
public class BullsEye extends JPanel
{
	public static void bullsEye(Graphics g, int x, int y, int diam, int count)
	{
		int r = diam; //fill oval uses width and height, I will use diam here
		int xloc = x;
		int yloc = y;
		int offset = 0;
		boolean change = true;
 
		for(int j = 0; j < count; j++)
		{
			//must cast int divisor to float
			//then cast the final result back to int
			//also multiplying by r so its a percentage of diam
			offset = (int)(r*(j*(1/(float)(count))));
			if(change)
			{
				g.setColor(Color.BLACK);
				change = false;
			} else {
				g.setColor(Color.RED);
				change = true;
			}//end if/else
                g.fillOval(xloc + offset/2, yloc + offset/2, r - offset, r - offset);
		}//end for
	}//end method bullsEye
}//end class BullEye

//Jeremiah A. Walker
//Tester Program for SmileyFace.java
//See SmileyFace.java for notes
 
import javax.swing.*;
 
public class BullsEyeTest
{
	public static void main( String[] args )
	{
		BullsEye panel = new BullsEye();
		JFrame application = new JFrame();
 
		application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
		application.add( panel );
		application.setSize( 230, 250 );
		application.setVisible( true );
	}//end main
}//end class SmileyFaceTest