how to create an array of images in java?

Question

I am trying to initialise a deck of cards, and display them (I have the images in .gif). The only problem I've encountered is initialising the deck itself. So far, I've tried to create four arrays (one for each suit) as such:

import java.applet.*;
import java.awt.*;

public class deckOfCards extends Applet
{
    public void init()
    {
        image clubs = new image[13];
        image hearts = new image[13];
        image spades = new image[13];
        image diamonds = new image[13];
    }
}

and then do something like this for each suit:

for( int i = 0; i <= 13; i++ )
{
    clubs[i] = getImage( getDocumentBase(), c(i).gif )
}

(the card files are saved in filenames c1.gif, c2.gif.....c13.gif for each suit)

I get an error saying that symbol "image" can't be found, but doesn't java.awt.image have a class to create the image object and image methods?

I would strongly recommend you make your program more object orientated by creating a Card object which has its own image and attributes, or I smell spaghetti code a' cooking. — MrLore
– MrLore, Commented Jan 28, 2013 at 20:47
I strongly recommend you to find a beginner book of Java, and learn about basics of the language: case-sensitiveness, what's the correct way to declare and use array, naming conventions, learn to read javadoc, and etc. — Adrian Shum
– Adrian Shum, Commented Jan 29, 2013 at 0:57

Reimeus · Accepted Answer · 2013-01-29 00:32:06Z

8

image is not a valid class in the AWT package, make the first letter uppercase.

You have some syntax issues:

Capital I in Image
Missing left-hand-side array brackets
Don't go beyond the index of your Image array when looping
Quotes needed for getImage call

Java naming conventions indicate that classes start with a capital letter, so too should your class:

public class DeckOfCards extends Applet {

    public void init() {

       Image[] clubs = new Image[13];
       for (int i = 0; i < clubs.length; i++ ) {
            clubs[i] = getImage( getDocumentBase(), "c" + (i + 1) + ".gif");
        }
        ...
    }
}

Also Applet is a museum piece and has been superseded by the lightweight javax.swing.JApplet.

edited Jan 29, 2013 at 0:32

answered Jan 28, 2013 at 20:45

Reimeus

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Comments

Ariel Grabijas · Accepted Answer · 2013-01-28 21:00:30Z

1

Thats the way you do it using ArrayList Containter. In practice ArrayList is.. an array, but much more flexible.

ArrayList<Image> arrayName = new ArrayList<Image>();
Image imageName = getImage(getCodeBase(),"direction.jpg");
arrayName.add(imageName);

edited Jan 28, 2013 at 21:00

answered Jan 28, 2013 at 20:49

Ariel Grabijas

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5 Comments

MadProgrammer Over a year ago

+1 for the advice, but it doesn't fix the immediate issue of the OP

Ariel Grabijas Over a year ago

Yes, it does not. But maybe he's going to decide that he need more flexible data structure in that issue, there are plenty of ways, and I like to inform, and be informed, about alternatives.

MadProgrammer Over a year ago

I agree, it's nice to provide direction to people. I would, however, IMHO, suggest that you try and address the problem AND provide direction or leave it as a comment - the issue is, some people may choose to down vote the answer because they see it as unhelpful - just saying ;)

Andrew Thompson Over a year ago

" But maybe he's going to decide that he need more flexible data structure" For a deck of 52 cards?

Ariel Grabijas Over a year ago

Ok MadProgrammer, i see you point and i will consider it, thanks :) Andrew - we dont know what is he going to do with that deck, do we? :)

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