java how to iterate over string code example

Example 1: iterate over string java

String str = "hello";
for (char c : str.toCharArray())
  //process c

Example 2: java for character c in string iterate cout i

String s = "...stuff...";

for (int i = 0; i < s.length(); i++){
    char c = s.charAt(i);        
    //Process char
}