PixelCompetition/Java

Installation von BlueJ

Linux / Debian:

https://www.bluej.org/debian-ubuntu-oracle-java.html

Windows

https://www.bluej.org/

--> StandAlone (zip) --> auspacken (z.B. nach c:\tools\bluej)

import java.net.*;
import java.io.*;
import javax.imageio.*;
import java.awt.image.*;
import java.awt.*;

/**
 * Write a description of class App here.
 *
 * @author Jörn Schlingensiepen
 * @version 0.0.1
 */
public class App
{
    // instance variables - replace the example below with your own
 public static void main(String[] args) throws Exception{
        // Ausgabe von "Hello World!"
        System.out.println("Hello World!");
        
        String host = "box.pixel-competition.de";
        int port = 2342;
        
        for (int i = 0; i<100; i++)
        {
            System.out.println(i);
        }
        
        // Mit dieser Schreibweise stellt Ihr sicher, dass die Socket in jedem Fall
        // immer richtig geschlossen wird. Sockets sind im Betriebsystem ja eine endliche
        // Ressource und wenn Ihr die nicht immer ordentlich schließt und aufräumt, ist
        // irgendwann Schicht.
        try (Socket socket = new Socket(host, port)) {
            OutputStream output = socket.getOutputStream();
            PrintWriter writer = new PrintWriter(output, true);
            
            writer.println ("PX 100 100 5 5 200");
            
            int r = 5;
            int g = 5;
            int b = 200;
            
            for (int x = 0; x < 100; x++)
            {
                for (int y = 0; y < 100; y++)
                {
                    String command = String.format ("PX %d %d %d %d %d", x, y, r, g, b);
                    System.out.println(command);
                    writer.println(command);
                }                
            }
            
            BufferedImage image = ImageIO.read(new File("Nut.jpg"));
            
            int width = image.getWidth();
            int height = image.getHeight();
            for (int x = 0; x < width; x++)
            {
                for (int y = 0; y < height; y++)
                {
                    Color color = new Color(image.getRGB(x,y));                    
                    String command = String.format ("PX %d %d %d %d %d", x, y,
                        color.getRed(),
                        color.getGreen(),
                        color.getBlue());
                    System.out.println(command);
                    writer.println(command);
                }                
            }
            
 
        } catch (UnknownHostException ex) {
 
            System.out.println("Server not found: " + ex.getMessage());
 
        } catch (IOException ex) {
 
            System.out.println("I/O error: " + ex.getMessage());
        }        
    }

}