Java how to remove duplicate elements in java array

/**
 * @author lautturi.com
 * Java example: how to remove duplicate elements in java array
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		int[] array = { 11,4,12,7,55,8,12,8,13,55,12,7 };
		
		Set<Integer> set = new HashSet<>();

		for(int i=0;i<array.length;i++) {
			set.add(array[i]);
		}

		Integer[] newArray =  set.toArray(new Integer[set.size()]);
	    System.out.println(Arrays.toString(newArray));
	    
		for (Integer element : newArray) {
			System.out.print(element+" ");
		}
	}
}

output:

[4, 7, 55, 8, 11, 12, 13]
4 7 55 8 11 12 13