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Loops - Java Quiz Question

What will be the output of the following program?

public class Printstatment14 
{
    public static void Elements(int[] arr) 
    {
        for (int i = 0; i < arr.length; i++) 
        {
            boolean isValid = false;
            for (int j = 0; j < i; j++) 
            {
                if (arr[i] == arr[j]) 
                {
                    isValid = true;
                    break;
                }
            }
            if (!isValid) 
            {
                System.out.print(arr[i] + " ");
            }
        }
    }
    public static void main(String a[]) 
    {
        int[] nums = {5, 2, 7, 2, 4, 7, 8, 2, 3};
        Printstatment14.Elements(nums);
    }
}

	5 2 7 4 8 3
	2 7
	4 7 8 2
	2
	Compilation Error or Runtime Error

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