make a button round

hi, im trying to make a JButton round at the (x,y) corrds of (150,210). i want the button to be an oval of the size (40,40). and the buttons background color red. it doesnt need text so i should get a button to what ever size i want right.

i am using a panel and i set the setLayout to null

setLayout(null)

i checked google and it brought me here please help me.

From stackoverflow

• JDC Tech Tips: August 26, 1999: Creating Round Swing Buttons

  import java.awt.*;
  import java.awt.geom.*;
  import javax.swing.*;
  
  public class RoundButton extends JButton {
    public RoundButton(String label) {
      super(label);
  
  // These statements enlarge the button so that it 
  // becomes a circle rather than an oval.
      Dimension size = getPreferredSize();
      size.width = size.height = Math.max(size.width, 
        size.height);
      setPreferredSize(size);
  
  // This call causes the JButton not to paint 
     // the background.
  // This allows us to paint a round background.
      setContentAreaFilled(false);
    }
  
  // Paint the round background and label.
    protected void paintComponent(Graphics g) {
      if (getModel().isArmed()) {
  // You might want to make the highlight color 
     // a property of the RoundButton class.
        g.setColor(Color.lightGray);
      } else {
        g.setColor(getBackground());
      }
      g.fillOval(0, 0, getSize().width-1, 
        getSize().height-1);
  
  // This call will paint the label and the 
     // focus rectangle.
      super.paintComponent(g);
    }
  
  // Paint the border of the button using a simple stroke.
    protected void paintBorder(Graphics g) {
      g.setColor(getForeground());
      g.drawOval(0, 0, getSize().width-1, 
        getSize().height-1);
    }
  
  // Hit detection.
    Shape shape;
    public boolean contains(int x, int y) {
  // If the button has changed size, 
     // make a new shape object.
      if (shape == null || 
        !shape.getBounds().equals(getBounds())) {
        shape = new Ellipse2D.Float(0, 0, 
          getWidth(), getHeight());
      }
      return shape.contains(x, y);
    }
  
  // Test routine.
    public static void main(String[] args) {
  // Create a button with the label "Jackpot".
      JButton button = new RoundButton("Jackpot");
      button.setBackground(Color.green);
  
  // Create a frame in which to show the button.
      JFrame frame = new JFrame();
      frame.getContentPane().setBackground(Color.yellow);
      frame.getContentPane().add(button);
      frame.getContentPane().setLayout(new FlowLayout());
      frame.setSize(150, 150);
      frame.setVisible(true);
    }
  }
  

• There's a good explanation of how you can do this here: http://forums.sun.com/thread.jspa?threadID=284897&tstart=28696 that can be extended to buttons of any shape.

• Easy it is called JRounded button

• if make a round button follow this way, i think that it's over complex. Can you create an OvalButton by another way?

  brian_d : if you are not concerned about the actual clickable bounds of the oval (keeping it to the containing rectangle), then using a png image and setContentAreaFilled(false); works