The final object demonstration (Description is here : https://codewander.blogspot.com/2020/01/the-final-keyword-in-java.html)

MyClass.java

import java.awt.Point;
public class MyClass {
    static final Point p = new Point(0,0);
    public static void main(String args[]) {
        p.x = 10; //Will run successful
        System.out.println(p);
	p = new Point(10,0); // Will give compile time error
    }
}