Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.awt.image.BufferedImage;
import java.net.URL;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

public class Main {
    public static void main(String[] argv) throws Exception {
        ImageInputStream imageStream = ImageIO.createImageInputStream(new URL("").openStream());
        Iterator<ImageReader> readers = ImageIO.getImageReaders(imageStream);
        ImageReader reader = null;
        if (!readers.hasNext()) {
            imageStream.close();
            return;
        } else {
            reader = readers.next();
        }
        String formatName = reader.getFormatName();
        if (!formatName.equalsIgnoreCase("jpeg") && !formatName.equalsIgnoreCase("png")
                && !formatName.equalsIgnoreCase("gif")) {
            imageStream.close();
            return;
        }
        reader.setInput(imageStream, true, true);
        BufferedImage theImage = reader.read(0);
        reader.dispose();
        imageStream.close();
    }
}