Given an array with duplicate elements give an algorithm to get the count of distinct elements in the array


public class ArrayHandler {
    public static void main(String[] args) {

        int[] intArray = {1, 2, 3, 4, 5, 3, 1};
        Set valueSet = new HashSet();
        for (Integer intValue : intArray) {
            valueSet.add(intValue);
        }
        System.out.println("No of distinctive elements are " + valueSet.size());
    }
}

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