I need a java code that removes duplicates from an array

public static java.lang.String[] removeDups(java.lang.String[] arr)

Returns a new array with duplicate elements removed. The relative ordering of the first occurrence of each element is unchanged. The given array is not modified.

Example: Given the array ["E", "A", "E", "D", "E", "A", "H", "D"], returns the array ["E", "A", "D", "H"].

Parameters:

arr - given array

Returns:

new array with duplicates removed