MainClass.java Source code

Java tutorial

Introduction

Here is the source code for MainClass.java

Source

// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski.  Copyright (c) 1997 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.applet.Applet;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.CropImageFilter;
import java.awt.image.FilteredImageSource;

public class MainClass extends Applet {
    Image i, j;

    public void init() {
        MediaTracker mt = new MediaTracker(this);
        i = getImage(getDocumentBase(), "rosey.jpg");
        mt.addImage(i, 0);
        try {
            mt.waitForAll();
            int width = i.getWidth(this);
            int height = i.getHeight(this);
            j = createImage(new FilteredImageSource(i.getSource(),
                    new CropImageFilter(width / 3, height / 3, width / 3, height / 3)));
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public void paint(Graphics g) {
        g.drawImage(i, 10, 10, this); // regular
        if (j != null) {
            g.drawImage(j, 10, 90, this); // cropped
        }
    }
}