[java] Window error
Author
I''m trying to make this window and I get these errors.
Errors: http://www.sonicfighters.com/rpg/errors.txt
Code: http://www.sonicfighters.com/rpg/code.txt
What am I doing wrong?
Your class is "extends canvas". To use "getDocumentBase()", it should be an applet: "extends java.applet.Applet".
Author
Well I when I make it applet, it opens up two windows. One is a big grey window which is what I wanted and the second is a smaller window with the graphics and buttons on it, but I wanted the graphics and buttons to be on the canvas one. What do I do?
[edited by - DKN on May 25, 2004 3:17:02 PM]
[edited by - DKN on May 25, 2004 3:17:02 PM]
quote:Original post by DKN
Well I when I make it applet, it opens up two windows. One is a big grey window which is what I wanted and the second is a smaller window with the graphics and buttons on it, but I wanted the graphics and buttons to be on the canvas one. What do I do?
[edited by - DKN on May 25, 2004 3:17:02 PM]
You can start off by reading this:
http://java.sun.com/docs/books/tutorial/uiswing/index.html
And the tutorials here:
http://grexengine.com/sections/externalgames/
I've linked to the sun tute twice and other people have directed you to it. You really need to start helping yourself.
[edited by - nonnus29 on May 26, 2004 8:09:23 AM]
Author
quote:Original post by nonnus29quote:Original post by DKN
Well I when I make it applet, it opens up two windows. One is a big grey window which is what I wanted and the second is a smaller window with the graphics and buttons on it, but I wanted the graphics and buttons to be on the canvas one. What do I do?
[edited by - DKN on May 25, 2004 3:17:02 PM]
You can start off by reading this:
http://java.sun.com/docs/books/tutorial/uiswing/index.html
And the tutorials here:
http://grexengine.com/sections/externalgames/
I''ve linked to the sun tute twice and other people have directed you to it. You really need to start helping yourself.
[edited by - nonnus29 on May 26, 2004 8:09:23 AM]
geez don''t tell me to help myself because I am...you don''t know how many hours I spent at this and some people like myself have a really hard time understanding things. And so what if someone has posted about the sun site, people have also told me to just post if I don''t understand something. I do read. So I thank the people who have helped me so far.
1) It is not a good idea to load images in the paint void.
2) You should make 2 classes, like this
class someClass extends Applet
{
public void init()
{
Image img=getImage(getDocumentBase(),"img.jpg");
//wait till the image is loaded
MediaTracker mt=new MediaTracker(this);
try{
mt.addImage(img,0);
mt.waitForAll();
}catch(Exception ex){}
//create the window
MyWindow w=new MyWindow(img);
}
}
class MyWindow extends JFrame
{
Image img;
public MyWindow(Image img)
{
this.img=img;
//initialise the layout, add some components...
pack();
show();
}
public void paint(Graphics g)
{
//draw the image.
}
}
[edited by - Koroljov on May 26, 2004 12:29:30 PM]
2) You should make 2 classes, like this
class someClass extends Applet
{
public void init()
{
Image img=getImage(getDocumentBase(),"img.jpg");
//wait till the image is loaded
MediaTracker mt=new MediaTracker(this);
try{
mt.addImage(img,0);
mt.waitForAll();
}catch(Exception ex){}
//create the window
MyWindow w=new MyWindow(img);
}
}
class MyWindow extends JFrame
{
Image img;
public MyWindow(Image img)
{
this.img=img;
//initialise the layout, add some components...
pack();
show();
}
public void paint(Graphics g)
{
//draw the image.
}
}
[edited by - Koroljov on May 26, 2004 12:29:30 PM]
For starters, you gave us very little code and a no detail description of the problem, its not even clear what you want to do; are you making an applet or an app? Do you understand the difference between an applet and an application? How well do you understand oop programming? Not very well I''m betting after I see this:
JPanel panel = (JPanel) frame.getContentPane();
Its important to start with the basics. Its good to ask questions, but you''re not asking the right questions and its obvious you haven''t studied the links posted. We''ve all been newbies, but you really have to get used to reading other peoples code and learning from examples if you want to make it far in programming.
Don''t get discouraged. Keep asking questions.
JPanel panel = (JPanel) frame.getContentPane();
Its important to start with the basics. Its good to ask questions, but you''re not asking the right questions and its obvious you haven''t studied the links posted. We''ve all been newbies, but you really have to get used to reading other peoples code and learning from examples if you want to make it far in programming.
Don''t get discouraged. Keep asking questions.
quote:Original post by DKN
geez don''t tell me to help myself because I am...you don''t know how many hours I spent at this and some people like myself have a really hard time understanding things. And so what if someone has posted about the sun site, people have also told me to just post if I don''t understand something. I do read. So I thank the people who have helped me so far.
Don''t get upset, you gave us very little to work with. Rather than simply posting errors and code, you should tell us what you have already tried, what you think may be the problem, etc., etc. All of this will help anyone who is willing to help you. When you don''t post what you''ve tried, many people may (wrongfully or not) assume that you haven''t even really tried to fix it yet, so will point you to tutorials. So please, help us help you.
Author
Well alright. I''ve just completed a year of a java course and obvisously haven''t gotten that far and I do understand the theory, but that''s basically all I learned out of that course and not how to apply things and I read others people''s code day and night. That''s why my code is the way it is from the examples I find. So in the future I''ll post more detailed posts.
This topic is closed to new replies.
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