WAP to get the name of a person and print his initials

import java.util.Scanner;
public class Initials
{
    public static void main()
    {
        Scanner s=new Scanner(System.in);
        String str=s.nextLine();
        String a[]=str.split("\\ +");
        String p="";
        for(int x=0; x<a.length; x++)
        {
            char c=a[x].charAt(0);
            p=p+c+".";
        }
        System.out.println(p);
    }
}