Overriding shortcode calling function using OOP techniques

I am making a plugin extension. I want to override the parent class method. I actually want to override the plugin shortcode calling function that is overridden in child class.

Parent Class

class A(){
    __constructor{
       add_shortcode('plugin-shortcode' , array( '$this', 'event_listing' ) );
    }
    public function event_listing() {
        // Code here
   }
}

Child Class

class B extends class A () {
  __contructor() {
   }
   public function event_listing() {
    // Code here
   }
}

Now problem is that, i am not understanding exactly how i call this child class method on the ‘plugin-shortcode’.

Any input will be appreciated.