Implementing Sorted Vector in Java

// We are going to implement sorted vector
// from inbuilt Vector class.
import java.util.*;

class SortedVector extends Vector<Object> {

    private final Vector<Object> list = new Vector<>();
    private final Comparator<? super Object> comparator
        = Collections.reverseOrder();
    
    public SortedVector() {}

    // method for adding elements in data
    // member of 'SortedVector'

    public void addingElement(Object obj)
    {

        list.add(obj);

        // if list size is less than or equal to one
        // element then there is no need of sorting.
        // here we are sorting elements

        if (list.size() > 1) {

            // If we are getting character as input then
            // Exceptions occurs in 'Collections.sort'.
            // So, we are type casting character to int.
            // and sorting character as integer.

            try {

                list.sort(comparator);
            }
            catch (Exception e) {

                Object recent = list.lastElement();

                list.removeElementAt(list.size() - 1);

                int val;

                // If we are getting string as input then
                // we are handling this exception here.

                try {

                    val = (char)recent;

                    list.add(val);

                    list.sort(comparator);
                }
                catch (Exception e1) {

                    System.out.println(
                        "You entered Strings");
                }
            }
        }

        addingElementsInSortedVector();
    }

    // adding element in object of 'SortedVector'

    private void addingElementsInSortedVector()
    {

        // clear all values of "SortedVector's" object

        clear();

        // adding values in object of 'SortedVector'

        addAll(list);
    }
}

// ours code starts from here

public class Main {

    public static void main(String[] args)
    {

        // creating an object of Sorted vector

        SortedVector sorted_vector = new SortedVector();

        // we have a method for adding object in
        //'SortedVector' class called 'addingElement'.
        // adding element in object of 'SortedVector'

        sorted_vector.addingElement(1);
        System.out.println("After 1st element Insertion:");
        for (Object i : sorted_vector) {
            System.out.println(i);
        }
        sorted_vector.addingElement(99);

        System.out.println("After 2nd element Insertion:");
        for (Object i : sorted_vector) {
            System.out.println(i);
        }

        System.out.println("After 3rd element Insertion:");
        sorted_vector.addingElement(2);
        for (Object i : sorted_vector) {
            System.out.println(i);
        }
        sorted_vector.addingElement(0);

        System.out.println("After 4th element Insertion:");
        for (Object i : sorted_vector) {
            System.out.println(i);
        }
    }
}