Need help with a compilation errors

> Toolkit.getDefaultToolkit().createImage("image_file");

The original poster is hard to understand, but if he is writing a (J)Applet, this version of createImage, which takes a string filename or path is going to fail. What's needed is a method that takes a URL:

import javax.imageio.*;

...

BufferedImage im = ImageIO.read(url);

ImageIO is better than the toolkit methods in a number of different ways, too.

DrLaszloJamfa at 2007-7-21 17:10:17 >

> import javax.imageio.*;

I hope this is going to end up at the top of your file, with the other imports.

> BufferedImage blackpearlf = ImageIO.read(url);

> How do I draw this onto the panel? Just the ordinary paintImage?

BufferedImage is a subclass of Image. One could even write:

Image blackpearl = ImageIO.read(url);

DrLaszloJamfa at 2007-7-21 17:10:22 >

I'll add all this to my code and see if it works out. Thanks. Can I ask one more question? How can I make an enemy ship move about randomly. Ive worked out the random bit but i cant time every 2 seconds for it to turn another direction. The only source of time seems to be the animation thread which runs a lot of times per second. Any ideas how I could time it to change direction every 2 seconds?

Chris1234554a at 2007-7-21 17:10:22 >

How does that differ from the animation driving thread? Also from the previous topic I have more errors :(

import javax.swing.*;

import java.awt.*;

import java.net.*;

import java.awt.event.*;

import javax.imageio.*;

public class piratepanel extends JPanel implements Runnable

{

int appletx = 500;

int applety = 500;

Font font;

Thread animator;

Boolean running = false;

public piratepanel()

{

// Set background colour

setBackground(Color.blue);

setPreferredSize( new Dimension(appletx, applety));

// Get game sprites

URL bp= getClass().getClassLoader().getResource("blackpearlf.gif");

BufferedImage blackPearl = ImageIO.read(bp);

URL s1= getClass().getClassLoader().getResource("ship1.gif");

BufferedImage ship1 = ImageIO.read(s1);

URL s2= getClass().getClassLoader().getResource("ship2.gif");

BufferedImage ship2 = ImageIO.read(s2);

URL s3= getClass().getClassLoader().getResource("ship3.gif");

BufferedImage ship3 = ImageIO.read(s3);

// Game objects

blackpearl blackpearl = new blackpearl();

ship1 ship1 = new ship1();

ship2 ship2 = new ship2();

ship3 ship3 = new ship3();

// Set up game font

Font gamefont = new Font( "Serif",Font.PLAIN,28 );

// Add action listener

addKeyListener( new KeyAdapter() {

public void keyPressed(KeyEvent e)

{ processKey(e); }

});

// initialise timing elements

running = false;

}

public void run()

{

}

private void processKey(KeyEvent e)

{

}

}

http://img508.imageshack.us/img508/6548/compilinglk4.png

Chris1234554a at 2007-7-21 17:10:22 >

Missing

import java.awt.image.BufferedImage;

You have also redefined variables

BufferedImage ship1 = ImageIO.read(s1);

//...

ship1 ship1 = new ship1();

Also consider using capital initial letters for your class names, e.g. Blackpearl instead of blackpearl.

Cheers

duckbilla at 2007-7-21 17:10:22 >

I realize this is a steep learning curve, but here is a general programming tip: if you find yourself writing the same code over and over again, make it a subroutine. You code will be clearer, it will be easier to reuse, and if you need to alter that procedure you only have to change the code in one place:

BufferedImage blackPearl = getImage("blackpearl.gif");

BufferedImage ship1 = getImage("ship1.gif");

...

public BufferedImage getImage(String name) throws IOException {

URL url = getClass().getResource(name);

return ImageIO.read(url);

}

DrLaszloJamfa at 2007-7-21 17:10:22 >

Here's a demo:

import java.awt.*;

import java.io.*;

import java.net.*;

import javax.imageio.*;

import javax.swing.*;

class Demo extends JComponent {

Image image1, image2;

public Demo() throws IOException {

setPreferredSize(new Dimension(400,300));

image1 = getImage("temp1.jpeg");

image2 = getImage("temp2.jpeg");

}

public Image getImage(String name) throws IOException {

URL url = getClass().getResource(name);

return ImageIO.read(url);

}

protected void paintComponent(Graphics g) {

super.paintComponent(g);

if (image1 != null)

g.drawImage(image1, 10, 10, null);

if (image2 != null)

g.drawImage(image2, 100, 100, null);

}

}

public class Launcher implements Runnable {

public static void main(String[] args) {

EventQueue.invokeLater(new Launcher());

}

public void run() {

try {

JFrame f = new JFrame();

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.getContentPane().add(new Demo());

f.pack();

f.setLocationRelativeTo(null);

f.setVisible(true);

} catch (IOException e) {

e.printStackTrace();

}

}

}

DrLaszloJamfa at 2007-7-21 17:10:22 >

> manifesting themselves?

You say you have bugs. That means you observed something that is different from the requirements. Maybe it was an error message at compile time. Maybe an error message at runtime. Maybe no error message, but the behavior was different from what you expected.

Provide details about what problems you're having, what undesirable behavior you're observing.

jverda at 2007-7-21 17:10:27 >