[Solved] Java: How to fix ArrayIndexOutOfBoundsException? [closed]

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You are out of array because in for you use i<=s.length but max index of array is s.length-1

But I am interested in this

String[] data = new String[(scn.nextLine()).length()];
data = (scn.nextLine()).split(",");

Why are you creating empty array and then replace it with new one?
I think you wanted to create something more like this 

String[] data = scn.nextLine().split(",");

Earlier you ware creating array based on second line of user input because you ware invoking scn.nextLine() twice.

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solved Java: How to fix ArrayIndexOutOfBoundsException? [closed]