import java.awt.*;
import javax.swing.*;

public class ImageScale extends JFrame {
  Image image;
  Insets insets;
  public ImageScale() {
    super("Show Image Scales");
    ImageIcon imageIcon = new ImageIcon("image4.jpg");
    image = imageIcon.getImage();
  }
  public void paint(Graphics g) {
    super.paint(g);
    if (insets == null) {
      insets = getInsets();
    }
    g.drawImage(image, insets.left, insets.top, this);
  }
  public void scale() {
    reset();
    Image img = image;
    image = img.getScaledInstance(250, -1, Image.SCALE_FAST);
    repaint();
    reset();
   
    image = img.getScaledInstance(300, -1, Image.SCALE_SMOOTH);
    repaint();
    reset();
   
    image = img.getScaledInstance(450, -1, Image.SCALE_REPLICATE);
    repaint();
    reset();
   
    image = img.getScaledInstance(400, -1, Image.SCALE_DEFAULT);
    repaint();
    reset();
  image = img.getScaledInstance(350, -1, Image.SCALE_AREA_AVERAGING);
  repaint();
    reset();
    System.exit(0);
  }
  private void reset() {
    try {
      Thread.sleep(3000);
    } catch (Exception e) {}
  }
  public static void main(String args[]) {
    ImageScale imgScale = new ImageScale();
    imgScale.setSize(400, 200);
    imgScale.show();
    imgScale.scale();
  }
}