package ArrayList;

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("Primes length = "+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 array...");
        int i = 0;
        while(i <= (primes.size()-1)){
            System.out.println(primes.get(i));
            i++;
        }
        int temp = primes.get(0);
        primes.set(0, primes.get(primes.size()-1));
        primes.set((primes.size()-1),temp);

        System.out.println("\nThe Final array...");
        for(int x = 0; x < primes.size(); x++){
            System.out.println(primes.get(x));
        }
    }
    }