为什么我得到“ArrayIndexOutOfBoundsException”？

I'm pretty new to programming and working on an assignment for class. Now, I'm not asking for anyone to write my code for me but I'm stuck with a runtime error. In the assignment we need to read a file, use the first line, "15", to initialize the size of an array, and proceed to fill the array with the information from each line. I'm pretty new to programming and working on an