package arrayplay;

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 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 = i + 1;
            }

        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 = x + 1 ) {
             System.out.println(primes[x]);
         }
    }
}