Java Strings Part 3

charAt() method retrieves a given character by index number (starting at zero)

public class charat {

    public static void main(String[] av) {
        String a = "Hello world";
        for (int i = 0; i < a.length(); i++) {
            System.out.println("Char " + i + " is " + a.charAt(i));
        }
        //Char 0 is H
        //Char 1 is e
        //Char 2 is l
        //Char 3 is l
        //Char 4 is o
        //Char 5 is  
        //Char 6 is w
        //Char 7 is o
        //Char 8 is r
        //Char 9 is l
        //Char 10 is d

        String s = "Hello world";
        //Does not work, in Java 7
        for (char ch : s.toCharArray()) {
            System.out.println(ch);
        }
        //H
        //e
        //l
        //l
        //o
        // 
        //w
        //o
        //r
        //l
        //d

    }
}

Java Strings Part 2
Java Strings Part 1