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Display Image using Toolkit.getImage()
Posted on: October 15, 2008 at 12:00 AM

This section illustrates you how to display the specified image using Toolkit.getImage() method.

Display Image using Toolkit.getImage()

This section illustrates you how to display the specified image using Toolkit.getImage() method.

To display the image, put an image into the folder where the class is specified. Class URL defines the resource. A resource can be a file or a directory.

The method getClass().getResource() returns the resource file. A ToolKit class provide methods to create GUI components and obtaining information from them. The getToolkit() method of Container class provides the toolkit of the component. The method getImage(url) of class ToolKit returns an image from the specified url.

The method drawImage(image, 20, 20, this) draws the specified image at the specified location and in specified size.

Here is the code of ImageExample.java


import java.awt.*;

import javax.swing.*;

import java.net.URL;



public class ImageExample extends JApplet {

  Image image;

  public void init() {

  loadImage();

  }

  public void loadImage() {

  URL url = getClass().getResource("alert.gif");

  image = getToolkit().getImage(url);

  }

 public void paint(Graphics g) {

  g.drawImage(image, 20, 20, this);

  }

 public static void main(String[] args) {

  JFrame frame = new JFrame("Image Example");

  ImageExample example = new ImageExample();

  frame.getContentPane().add(example);

  example.init();

  frame.setSize(200, 200);

  frame.setVisible(true);

  example.start();

  }

}

Output will be displayed as:

Download Source Code

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