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I have written this program to remove the duplicates from an unsorted array. Please review and give me your input on how I can improve it a little more.
public static void main(String[] args) {
int[] arr = {4, 3, 4, 2, 6, 1, 1, 7, 6, 8, 9, 9, 1, 1};
// perform quick sort for o(n log n)...