/* 
 * A program that print out sting array's elements with loops. 
 */

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]);
    }

    }

}