package arrayplay;

import java.sql.SQLOutput;

public class Primes {
    public static void main(String[] args) {

        int[] primes = new int[4];
        primes[0] = 2;
        primes[1] = 3;
        primes[2] = 5;
        primes[3] = 7;

        System.out.println("length of the primes array = " + primes.length);
        System.out.println("first prime = " + primes[0]);
        System.out.println("last prime = " + primes[3]);
        System.out.println("last prime = " + primes[primes.length - 1]);

        System.out.println("\nThe initial array ...");
        int i = 0;
        while (i < primes.length) {
            System.out.println(primes[i]);
            i++;
        }

        int temp = primes[0];
        primes[0] = primes[primes.length - 1];
        primes[primes.length - 1] = temp;

        System.out.println("\nThe final array ...");
        for (int x = 0; x < primes.length; x++) {

            System.out.println(primes[x]);


        }


    }


}