package arrayplay;

import java.util.ArrayList;

public class arraylistplay {
    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(primes.size() -1));
        System.out.println("last prime = " + primes.get(3));

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

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

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