Loading images into an array in Java

Question

I am trying to load some images into an array for an applet and I know there has to be a better way to do this?

public class Images extends Applet
{
    Image card[]=new Image[45];
    public void init()
    {
        img[0]= getImage( getDocumentBase(),"pics/1.gif");
        img[1]= getImage( getDocumentBase(),"pics/2.gif");
.....

Best thing to do is probably to have some kind of configuration file which lists the images to be loaded and use for-loop to load each one based on the needs of the configuration — MadProgrammer
– MadProgrammer, Commented Jun 30, 2014 at 5:46
I should have specified that the image names are not all the same - in case that matters — Expecto
– Expecto, Commented Jun 30, 2014 at 5:46
Do you want to improve performance? Try to use lazy load strategy. — Frank ZHENG
– Frank ZHENG, Commented Jun 30, 2014 at 5:48

Jon Skeet · Accepted Answer · 2014-06-30 05:50:42Z

4

Even if the filenames aren't predictable based on number, you could still have a collection of them. For example:

// Common prefix removed for brevity
private static final String[] IMAGE_FILES = {
    "img1.gif", "happy.gif", "sad.gif" /* etc */
};

Then:

Image[] images = new Image[IMAGE_FILES.length];
for (int i = 0; i < images.length; i++) {
    images[i] = getImage(getDocumentBase(), "pics/" + IMAGE_FILES[i]);
}

(There may well be a nicer way of transforming one array into another using a lambda in Java 8 - I haven't checked.)

It's not clear to me that an Images class is a good idea though - it doesn't really sound like something you'd typically create an instance of. I'd also strongly recommend using private fields.

answered Jun 30, 2014 at 5:50

Jon Skeet

1.5m893 gold badges9.3k silver badges9.3k bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Loading images into an array in Java

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related