feat(8-kyu): kata/exclamation-marks-series-number-4-remove-all-exclam…

…ation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string

kata/8-kyu/exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string/README.md

@@ -1,8 +1,9 @@
-# [Exclamation marks series #4: Remove all exclamation marks from sentence but ensure a exclamation mark at the end of string](https://www.codewars.com/kata/exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string "https://www.codewars.com/kata/57faf12b21c84b5ba30001b0")
+# [Exclamation marks series #4: Remove all exclamation marks from sentence but ensure an exclamation mark at the end of string](https://www.codewars.com/kata/exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string "https://www.codewars.com/kata/57faf12b21c84b5ba30001b0")
 
 ## Description:
 
-Remove all exclamation marks from sentence but ensure a exclamation mark at the end of string. For a beginner kata, you can assume that the input data is always a non empty string, no need to verify it.
+Remove all exclamation marks from sentence but ensure an exclamation mark at the end of string. For a beginner kata, you
+can assume that the input data is always a non-empty string, no need to verify it.
 
 ## Examples
 
@@ -13,4 +14,4 @@ Remove all exclamation marks from sentence but ensure a exclamation mark at the
 "!Hi!" ---> "Hi!"
 "Hi! Hi!" ---> "Hi Hi!"
 "Hi" ---> "Hi!"
-```
+```

kata/8-kyu/exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string/main/Kata.java

@@ -0,0 +1,5 @@
+interface Kata {
+  static String remove(String s) {
+    return s.replace("!", "") + "!";
+  }
+}

kata/8-kyu/exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string/test/KataTest.java

@@ -0,0 +1,19 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+class KataTest {
+  @ParameterizedTest
+  @CsvSource(textBlock = """
+      Hi!, Hi!
+      Hi!!!, Hi!
+      !Hi, Hi!
+      !Hi!, Hi!
+      Hi! Hi!, Hi Hi!
+      Hi, Hi!
+      """)
+  void sample(String s, String expected) {
+    assertEquals(expected, Kata.remove(s));
+  }
+}

kata/8-kyu/index.md

@@ -65,6 +65,7 @@
 - [Enumerable Magic #1 - True for All?](enumerable-magic-number-1-true-for-all)
 - [Enumerable Magic #25 - Take the First N Elements](enumerable-magic-number-25-take-the-first-n-elements)
 - [Even or Odd](even-or-odd)
+- [Exclamation marks series #4: Remove all exclamation marks from sentence but ensure an exclamation mark at the end of string](exclamation-marks-series-number-4-remove-all-exclamation-marks-from-sentence-but-ensure-a-exclamation-mark-at-the-end-of-string)
 - [Exclamation marks series #11: Replace all vowel to exclamation mark in the sentence](exclamation-marks-series-number-11-replace-all-vowel-to-exclamation-mark-in-the-sentence)
 - [Exclamation marks series #6: Remove n exclamation marks in the sentence from left to right](exclamation-marks-series-number-6-remove-n-exclamation-marks-in-the-sentence-from-left-to-right)
 - [Exclusive "or" (xor) Logical Operator](exclusive-or-xor-logical-operator)