Exception in thread "Animation Thread"

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alizsa

Exception in thread "Animation Thread"

in Programming Questions • 9 months ago

Hi all, in my program I am trying to read in strings from a file. It seems to work fine, but it ends up giving me an error and I can't seem to figure out why.

Here is the code:

String q[] = loadStrings("Level1.txt");
String[][] questions = new String[q.length][2];
for (int i = 0; i < q.length; i++)
{
String[] sep = split(q[i], '\t');
questions[i][0] = sep[0];
questions[i][1] = sep[1];
}

The file that I am reading in is tab-delimited and each line has two items, separated by a tab.

and the error is

Exception in thread "Animation Thread" java.lang.ArrayIndexOutOfBoundsException: 1

at spacebar.Level1(spacebar.java:49)

at spacebar.draw(spacebar.java:37)

at processing.core.PApplet.handleDraw(Unknown Source)

at processing.core.PApplet.run(Unknown Source)

at java.lang.Thread.run(Thread.java:662)

Thanks! :)

Replies(2)

amnon.owed

Re: Exception in thread "Animation Thread"

9 months ago

There is most likely a line with only one String, for example an empty line or something. In general println() is perfect for tracking problems like this and if-statements are a good way to failsafe your program. Try the code below and see what happens...

Adapted Code

String q[] = loadStrings("Level1.txt");
String[][] questions = new String[q.length][2];
for (int i = 0; i < q.length; i++)
{
String[] sep = split(q[i], '\t');
if (sep.length == 2) {
questions[i][0] = sep[0];
questions[i][1] = sep[1];
} else {
println("Line " + i " has " + sep.length + " String(s) instead of 2!");
}
}

alizsa

Re: Exception in thread "Animation Thread"

9 months ago

Ohhhh I did indeed have extra empty lines in my file that I hadn't noticed. Thanks so much for your help, and I'll keep that in mind next time I run into an error like this :)

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