Generics in java

package taoshiflex.lab9;

import java.util.ArrayList;
import java.util.HashSet;

public class Lab9 {
    public static void main(String[] args) {

        // Example usage
        ArrayList<Integer> originalList = new ArrayList<>();
        originalList.add(1);
        originalList.add(2);
        originalList.add(2);
        originalList.add(3);
        originalList.add(4);
        originalList.add(4);
        originalList.add(5);
        originalList.add(5);
        originalList.add(5);
        originalList.add(5);
        originalList.add(6);
        originalList.add(6);

        ArrayList<Integer> uniqueList = removeDuplicates(originalList);
        System.out.println("Original List: " + originalList);
        System.out.println("List with Duplicates Removed: " + uniqueList);
    }

    // Method to remove duplicates
    public static <E> ArrayList<E> removeDuplicates(ArrayList<E> list) {
        HashSet<E> set = new HashSet<>(list);     // Use HashSet to store unique elements
        return new ArrayList<>(set);                       // Convert HashSet back to ArrayList and return
    }
}