Java Remove duplicates Write a method that removes the dupli

Java

(Remove duplicates) Write a method that removes the duplicate elements from an array list of integers using the following header: public static void removeDuplicate(ArrayList list) Write a test program that prompts the user to enter 10 integers to a list and displays the distinct integers separated by exactly one space. Here is a sample run:

Solution

This is java program it cannot repeat same element .

class duplicate {

  

public static int[] removeDuplicates(int[] arr) {

Set<Integer> alreadyPresent = new HashSet<Integer>();

int[] whitelist = new int[0];

for (int nextElem : arr) {

if (!alreadyPresent.contains(nextElem)) {

whitelist = Arrays.copyOf(whitelist, whitelist.length + 1);

whitelist[whitelist.length - 1] = nextElem;

alreadyPresent.add(nextElem);

}

}

return whitelist;

}}