1 /*
 2  * To change this license header, choose License Headers in Project Properties.
 3  * To change this template file, choose Tools | Templates
 4  * and open the template in the editor.
 5  */
 6 package arraylistplay;
 7 
 8 import java.util.ArrayList;
 9 
10 /**
11  *
12  * @author ssingh6
13  */
14 public class Primes {
15 
16     /**
17      * @param args the command line arguments
18      */
19     public static void main(String[] args) {
20         ArrayList<Integer> primes = new ArrayList <>();
21         primes.add(2);
22         primes.add(3);
23         primes.add(5);
24         primes.add(7);
25         
26         System.out.println("size of primes list = " +primes.size());
27         System.out.println("first prime= "+primes.get(0));
28         System.out.println("last prime =" + primes.get(3));
29         System.out.println("last prime = " +primes.get(primes.size()-1));
30         
31         System.out.println("\n The inital list...");
32         for(Integer prime : primes)
33         {
34             System.out.println(prime);
35             
36         }
37         int temp = primes.get(0);
38         primes.set(0,primes.get(primes.size()-1));
39         primes.set(primes.size()-1,temp);
40         
41         System.out.println("\n The final list ....");
42         for(Integer prime : primes)
43         {
44             System.out.println(prime);
45         }
46                 
47                 
48         
49     }
50     
51 }
52