draw circle java code example

Example 1: awt draw circle

public void drawCenteredCircle(Graphics2D g, int x, int y, int r) {
  x = x-(r/2);
  y = y-(r/2);
  g.fillOval(x,y,r,r);
}

Example 2: java create circle

// x position, y position, x size, y size.
ellipse(0, 0, 100, 100);

Example 3: draw circle in java

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;

public class DrawCircle extends Frame 
{
	// input the value for circle and square.
	Shape circle=new Ellipse2D.Float(100.0f,100.0f,100.0f,100.0f);
	
	// class paint to fill color in circle.
	public void paint(Graphics g)
	{
		Graphics2D ga=(Graphics2D)g;
		ga.draw(circle);
		ga.setPaint(Color.blue);
		ga.fill(circle);
	}
		
	public static void main(String args[])
	{
		// create a frame object for circle.
		Frame frame=new DrawCircle();
		frame.addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent we)
			{
				System.exit(0);
		    }
		});
		// circle coordinates.
		frame.setSize(300, 250);
		frame.setVisible(true);	
	}
}

Example 4: how to draw a circle in java swing

g.drawOval(50,50,100,100);