Write a Program in java to remove duplicates in an ArrayList.

package simplilearnJava;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
public class ArrayDuplicate {
public static void main(String args[]) {
List num = new ArrayList();
num.add(1);
num.add(2);
num.add(3);
num.add(4);
num.add(5);
num.add(6);
num.add(3);
num.add(4);
num.add(5);
num.add(6);
System.out.println(“Your list of elements in ArrayList : ” + num);
Set primesWithoutDuplicates = new LinkedHashSet(num);
num.clear();
num.addAll(primesWithoutDuplicates);
System.out.println(“list of original numbers without duplication: ” + num);
}
}