ADDITIONAL SYSTEM INFORMATION :
64 bit, windows 11, java 21 version

A DESCRIPTION OF THE PROBLEM :
import java.util.Vector;

public class ArrayListAndVector {
public static void main(String[] args) {
Vector v1 = new Vector<>();

v1.add("Sunil");
v1.add("Praveen");
v1.add(0, "Nithin");


Vector v2 = new Vector();
v2.add(45);
v2.add("Nithin");
v2.add(true);

v1.addAll(v2);


v1.removeAll(v2);
System.out.println(v1);
}
}


Expected output :
[Nithin, Sunil, Praveen]

Actual output :
[Sunil, Praveen]