Home Java Example Java Swing Graphics2D Simple Gradient Paint Example

Simple Gradient Paint Example
Posted on: October 11, 2008 at 12:00 AM

A gradient refers to a colored strip with two defined endpoints. Both the end points are defined with different color.

Simple Gradient Paint Example

This section illustrates you how to use Gradient Paint.

A gradient refers to a colored strip with two defined endpoints. Both the end points are defined with different color. Then the colors will starts changes gradually from one to the other along a straight line between the two points.

To use a Gradient paint, we have used the class Elipse2D which provides the shape oval. The class GradientPaint allows you to set up a gradient filled shape with a linear color gradient pattern.

Here is the code of SimpleGradientPaintExample.java


import java.awt.*;

import javax.swing.*;

import java.awt.geom.*;

import java.awt.event.*;



public class SimpleGradientPaintExample extends JPanel {

  public void init() {

  setBackground(Color.gray);

  }

  public void paint(Graphics graphics) {

  Graphics2D g2d = (Graphics2D) graphics;

  g2d.setPaint(new GradientPaint(0, 0, Color.cyan, 200,

  200, Color.red, false));

  Ellipse2D.Double ellipse = new Ellipse2D.Double(5,5,200,200);

  g2d.fill(ellipse);

  }

  public static void main(String args[]) {

  JFrame frame = new JFrame("Simple Gradient Paint");

  SimpleGradientPaintExample gradientExample = new

   SimpleGradientPaintExample();

  frame.getContentPane().add("Center",gradientExample);

  gradientExample.init();

  frame.setSize(new Dimension(300, 250));

  frame.show();

  }

}

Output will be displayed as:

Download Source Code

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