Factory Method in Java
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Watch Factory Method's video tutorialpublic interface ImageReader {
public DecodedImage getDecodedImage();
}
public class GifReader implements ImageReader {
public GifReader( InputStream in ) {
// check that it's a gif, throw exception if it's not, then if it is
// decode it.
}
public DecodedImage getDecodedImage() {
return decodedImage;
}
}
public class JpegReader implements ImageReader {
//...
}
