How to print multiple 'char' types on one line

I’m new to java and I’ve searched stackoverflow for a simple answer but I cant see a simple answer.

How do i simply print ‘H.A.O’

public class Main {

    public static void main(String[] args) {
        char initial1 = 'H';

        char initial2 = 'A';

        char initial3 = 'O';

        System.out.println(initial1+'.'+initial2+'.'+initial3);
    // write your code here
    }
}

>Solution :

    System.out.println(initial1+"."+initial2+"."+initial3);

use double qoutes instead of single