Java only makes you declare checked exception not catch them. Its not _that_ difficult to end up with checked exceptions which get thrown all the way up to main

Java only makes you declare checked exception not catch them. Its not _that_ difficult to end up with checked exceptions which get thrown all the way up to main and crash your program. IndexOutOfBounds isn't checked though so it can get thrown from your code or someone else's and crash the whole process. Java exception handling is a mess.