Array subscript out of bounds: java.lang.arrayindexoutofboundsexception:1

This is a very common exception, from the name of the array subscript out of bounds error, the solution is to see why the subscript out of bounds. Of course, in terms of nouns, the size of the data is beyond range.

The error is as follows:

When I was working with debug, I always found the data to be right.

Is this situation, may wish to have been debug, not suspense, unexpectedly has the data is correct, does not give an error, then certainly has certain data to be wrong, found the error that data, and other data compares, discovered this data to have the question.