what is ordinal in java code example

Example: .ordinal java

package com.tutorialspoint;

import java.lang.*;
 
// enum showing Mobile prices
enum Mobile {
   Samsung(400), Nokia(250),Motorola(325);
  
   int price;
   Mobile(int p) {
      price = p;
   }
   int showPrice() {
      return price;
   } 
}

public class EnumDemo {

   public static void main(String args[]) {

      System.out.println("CellPhone List:");
      for(Mobile m : Mobile.values()) {
         System.out.println(m + " costs " + m.showPrice() + " dollars");
      }

      Mobile ret = Mobile.Samsung;
      System.out.println("The ordinal is = " + ret.ordinal());
      System.out.println("MobileName = " + ret.name());                      
   }
}