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 prize = "+ primes.get(0));
        System.out.println("last prize = "+ primes.get(3));
        System.out.println("last prize = "+ primes.get(primes.size()-1) );

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

        }

        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(prime);
        }
    }
}