New to Java

Yesterday I was having some problems with grasping the cloneable interface and writing the method. Well I think that I've sorted it out but I'm not exactly sure. I don't know how I'm supposed to throw the exception.

When attempting to clone an object in my test method, I recieve an error saying unreported exception CloneNotSupportedException, must be caught or declared to be thrown.

Here is my Cloneable interface:-

public interface Cloneable {
    
    Object clone() throws CloneNotSupportedException;
    
}

Here is my method for cloning an object below:-

    public Object clone() throws CloneNotSupportedException
    {
    try {
        this.clone();
        }
    catch (CloneNotSupportedException e)
        {
        System.out.println("Caught CloneNotSupportedException " + e.getMessage());
        }
        return this;        
    }

Here is my call to the method in my main class (*this is where the error is*):-

        Object card21 = card20.clone();

I have been through the trail on handling exceptions, but I still don't unserstand what I am doing wrong. Also, if I wanted to clone a Card object (from Card class), shouldn't my method for cloning be as below instead?

    public Card clone() throws CloneNotSupportedException
    {
    try {
        this.clone();
        }
    catch (CloneNotSupportedException e)
        {
        System.out.println("Caught CloneNotSupportedException " + e.getMessage());
        }
        return this;        
    }

Then when trying to clone a card object it should be like this in my main method:-

Card card2 = card1.clone();

Would appreciate any help thanks :)