hopefully 2nd part solution

Author: zayzou

com/zayzou/day00/Day01.java

@@ -13,9 +13,9 @@
 public class Day01 {
 
     final static HashMap<String, String> digitsMap = new HashMap<>();
-    final static String FILE = "com/zayzou/day00/input.txt";
+    final static String FILE = "com/zayzou/day00/part2.txt";
 
-    public static void main(String[] args) {
+    static {
         digitsMap.put("one", "1");
         digitsMap.put("two", "2");
         digitsMap.put("three", "3");
@@ -25,6 +25,9 @@ public static void main(String[] args) {
         digitsMap.put("seven", "7");
         digitsMap.put("eight", "8");
         digitsMap.put("nine", "9");
+    }
+
+    public static void main(String[] args) {
 
         //use auto close ressource to read the file
         try (BufferedReader br = new BufferedReader(new FileReader(FILE))) {
@@ -33,7 +36,6 @@ public static void main(String[] args) {
             String first = "";
             String last = "";
             while ((line = br.readLine()) != null) {
-
                 final String l = line;
                 for (int i = 0; i < line.length(); i++) {
                     final int index = i;
@@ -42,89 +44,39 @@ public static void main(String[] args) {
                         break;
                     }
                     Optional<String> firstOptional = digitsMap.keySet().stream()
+                            .filter(key -> index + key.length() < l.length())//to prevent out of bound
                             .filter(key -> key.equals(l.substring(index, index + key.length())))
                             .findFirst();
                     if (firstOptional.isPresent()) {
                         first = digitsMap.get(firstOptional.get());
                         break;
                     }
-
                 }
-
                 for (int i = line.length() - 1; i >= 0; i--) {
                     final int index = i;
                     if (Character.isDigit(line.charAt(i))) {
                         last = String.valueOf(line.charAt(i));
                         break;
                     }
-                    Optional<String> lastOptional = digitsMap.keySet().stream()
-                            .filter(ee -> l.lastIndexOf(ee) == ((l.length()) - ee.length()))
-                            .findFirst();
-                    if (lastOptional.isPresent()) {
-                        last = digitsMap.get(lastOptional.get());
-                        break;
-                    }
                 }
 
-                sum+=Integer.valueOf(first + "" + last);
-
+                if (last.isBlank()) {
+                    int maxIndex = -1;
+                    for (Map.Entry<String, String> entry : digitsMap.entrySet()) {
+                        var number = entry.getKey();
+                        int index = line.lastIndexOf(number);
+                        if (maxIndex < index) {
+                            last = entry.getValue();
+                            maxIndex = index;
+                        }
+                    }
+                }
+                System.out.println(line + " -> " + first + "" + last);
+                sum += Integer.valueOf(first + "" + last);
             }
             System.out.println(sum);
         } catch (IOException ex) {
             throw new RuntimeException(ex.getMessage());
         }
-
-
     }
-
-    private static int sumOfAllValues(String line) {
-
-        //look for the first digit
-        OptionalInt first = line.chars()
-                .filter(Character::isDigit)
-                .map(Character::getNumericValue)
-                .findFirst();
-
-        //look for the last digit
-        Optional<Integer> last = IntStream.range(0, line.length())
-                .boxed()
-                .sorted(Collections.reverseOrder())
-                .filter(i -> Character.isDigit(line.charAt(i)))
-                .map(i -> Character.getNumericValue(line.charAt(i)))
-                .findFirst();
-
-        //create the number from the 2 digits
-        Integer number = Integer.valueOf(first.getAsInt() + "" + last.get());
-        return number;
-    }
-
-
-    public static void part2(String line) {
-        //look for the last digit
-//        Map.Entry<String, String> entry =
-//                getFirstDigit(line);
-        //look for the last digit
-   /*     Map.Entry<String, Integer> last = digitsMap.entrySet().stream()
-                .filter(ee -> line.lastIndexOf(ee.getKey()) == ((line.length()) - ee.getKey().length()))
-                .findFirst().get();*/
-//        System.out.println(entry.getValue() + "" + last.getValue());
-
-    }
-
-/*
-    private static Integer getFirstDigit(String line) {
-        return digitsMap.entrySet().stream()
-
-                .filter(ee -> line.indexOf(ee.getKey()) == 0)
-                .findFirst().get().getValue();
-    }
-*/
-
-/*    private static Integer getLastDigit(String line) {
-        return digitsMap.entrySet().stream()
-                .filter(ee -> line.lastIndexOf(ee.getKey()) == ((line.length()) - ee.getKey().length()))
-                .findFirst().get().getValue();
-    }*/
-
-
 }

com/zayzou/day00/part2.txt

@@ -1,7 +1,6 @@
-two1nine
-eightwothree
-abcone2threexyz
-xtwone3four
-4nineeightseven2
-zoneight234
-7pqrstsixteen
+six1mpffbnbnnlxthree
+4eight3one
+9nine2xnhvjtjlzj
+jxrbrt4jmnmlonesznvbjrsn
+nsvkljgpfn77pvfour5j
+fourlkgmnnzncht75