package arraylistplay;

import java.util.ArrayList;

public class Primes {
    public static void main (String[] args){
         ArrayList<Integer> primes = new ArrayList<>();

         primes.add(2);
         primes.add(3);
         primes.add(5);
         primes.add(7);

         System.out.println("size of primes list="+primes.size());
         System.out.println("first prime="+ primes.get(0));
         System.out.println("last prime="+primes.get(3));
         System.out.println("last prime="+primes.get(primes.size()-1));

         System.out.println("\nThe initial list...");
         for (Integer prime : primes){
             System.out.println(primes);
         }

         int temp = primes.get(0);
         primes.set(0,primes.get(primes.size()-1))      ;
         primes.set(primes.size()-1,temp);

         System.out.println("\nThe final list...");
         for (Integer prime : primes){
             System.out.println(primes);
         }
    }
}