How to Draw a circle in Java ME

Comments

16 Sep
2009

Article Review by vkmunjpara (20090916)

Good for beginners.

when we develop any software,Home page designing is first concerned.So to draw circles,rectangles,ellipses etc.. ,This article is helpful to us.How to fill objects are also given in this article..

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Code Example

Source file: Media:DrawACircleMIDlet.zip

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Article

Created: senthil_k (19 Nov 2007)

Last edited: hamishwillee (06 Feb 2012)

This article explains how to draw a circle by using Java ME low-level graphics.

Description

When working with low-level Graphics, it's possible to draw simple shapes just using the available Graphics methods:

• drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
• drawLine(int x1, int y1, int x2, int y2)
• drawRect(int x, int y, int width, int height)
• drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)

Source code

The following code shows the paint method of a Canvas class which helps to draw a circle in Java ME

protected void paint(Graphics graphics)
  {
    graphics.setColor(255,255,255);
    graphics.fillRect(0, 0, getWidth(), getHeight());
    graphics.setColor(255,0,0);
    graphics.drawArc(0, 0, getWidth(), getHeight(), 0, 360); 
 }

To draw a filled circle, just replace the drawArc() method with fillArc().

Download

You can download the source code presented in this article here: Media:DrawACircleMIDlet.zip

Related resources

Low-level APIs on Nokia Developer Java ME Developer's Library