Remove duplicate elements from an array

remove-duplicates.java

/* Remove duplicate elements from an array */

// Code inside the method is presented here
int[] numbers = {1, -2, 3, 1, 0, 9, 5, 6, 4, 5};
System.out.println("Input array: " + Arrays.toString(numbers));

Arrays.sort(numbers);

int j = 0; // Slow moving index

// i is the fast moving index that loops through the entire array
for (int i = 1; i < numbers.length; i++) {
	if (numbers[i] != numbers[j]) {
		j++;
		numbers[j] = numbers[i];
	}
}

int[] result = Arrays.copyOf(numbers, j + 1);
System.out.println("Final result after removing duplicates: " + Arrays.toString(result));