Question

I have the following code

while(((line = in.readLine()) != null))
                {
            String[] val = line.split("<>");

            courses.put(val[0], val[1]);

and this is the text i’m trying to read

1<>CIS 101-1
2<>CIS 101-2
3<>CIS 231-1
4<>CIS 231-2
5<>CIS 234-1
6<>CIS 234-2

i get an ArrayIndexOutOfBoundsException when trying to run the program at line

 courses.put(val[0], val[1]);

can anyone offer any help?

Answer 1

All of those lines should produce an array of length 2.

Make sure you don’t have a blank line in the end of the file.

You could for instance skip lines that doesn’t conform to the pattern by adding something like

while (...) {

    if (!line.contains("<>"))
        continue;

    ...
}