how to randomize an array java

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Liam
15 Nov 2019
1void shuffle(int [] arr) {
2        for (int i = 0; i < arr.length; i++) {
3            int index = (int) (Math.random() * arr.length);
4            int temp = arr[i];
5            arr[i] = arr[index];
6            arr[index] = temp;
7        }
8    }
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