[java] Splitting words into letters in Java

How can you split a word to its constituent letters?

Example of code which is not working

 class Test {
         public static void main( String[] args) {
             String[] result = "Stack Me 123 Heppa1 oeu".split("\\a");                                                                                   

             // output should be
             // S
             // t
             // a
             // c
             // k
             // M
             // e
             // H
             // e
             // ...
             for ( int x=0; x<result.length; x++) {
                 System.out.println(result[x] + "\n");
             }
         }
     }

The problem seems to be in the character \\a. It should be a [A-Za-z].

 char[] result = "Stack Me 123 Heppa1 oeu".toCharArray();

You can use

String [] strArr = Str.split("");

I'm pretty sure he doesn't want the spaces to be output though.

for (char c: s.toCharArray()) {
    if (isAlpha(c)) {
       System.out.println(c);
     }
}

Including numbers but not whitespace:

"Stack Me 123 Heppa1 oeu".replaceAll("\\W","").toCharArray();

=> S, t, a, c, k, M, e, 1, 2, 3, H, e, p, p, a, 1, o, e, u

Without numbers and whitespace:

"Stack Me 123 Heppa1 oeu".replaceAll("[^a-z^A-Z]","").toCharArray()

=> S, t, a, c, k, M, e, H, e, p, p, a, o, e, u

"Stack Me 123 Heppa1 oeu".toCharArray() ?

String[] result = "Stack Me 123 Heppa1 oeu".split("**(?<=\\G.{1})**");
System.out.println(java.util.Arrays.toString(result));