update

AnghelLeonard · AnghelLeonard · commit 04875652925f · 2019-08-25T09:57:53.000+03:00
diff --git a/Chapter_01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Strings.java b/Chapter_01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Strings.java
@@ -83,6 +83,7 @@ public static char firstNonRepeatedCharacterV3(String str) {
 
         Map<Character, Integer> chars = new LinkedHashMap<>();
 
+        // or use for(char ch: str.toCharArray()) { ... }
         for (int i = 0; i < str.length(); i++) {
             char ch = str.charAt(i);
 
