Java - how to convert letters in a string to a number?

Question

I\'m quite new to Java so I am wondering how do you convert a letter in a string to a number e.g. hello world would output as 8 5 12 12 15 23 15 18 12 4

Answer 1

public static void main(String[] args) {
    String s = "hello world";
    s = s.replace(" ", "");
    char[] c = s.toCharArray();

    for (Character ss : c)
        System.out.println(ss - 'a' + 1);
}