java loop though character in a string

java loop though character in a string
String str = "hello lautturi world!";
for (int i = 0; i < str.length(); i++) {
    char ch = str.charAt(i);
   
}
Sourc‮ww:e‬w.lautturi.com
Created Time:2017-09-02 20:36:56  Author:lautturi