JAVA ArrayIndexoutofBoundException issue

by 

int[] temp = {};

This sets temp to an array of 0 elements. So when you try to access temp[index] where index is = to 0 its out of bounds because the array doesn’t have even a single element

You would need to create an array of x number elements by doing:

int[] temp = new int[x];

and then you can set the value at each of the indicies to whatever value you want.

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