feat: kata/sort-by-last-char

kata/7-kyu/index.md

@@ -495,6 +495,7 @@
 - [Sort an array by value and index](sort-an-array-by-value-and-index "58e0cb3634a3027180000040")
 - [Sort arrays - 1](sort-arrays-1 "51f41b98e8f176e70d0002a8")
 - [Sort by binary ones](sort-by-binary-ones "59eb28fb0a2bffafbb0000d6")
+- [Sort by Last Char](sort-by-last-char "57eba158e8ca2c8aba0002a0")
 - [Sort deck of cards](sort-deck-of-cards "56f399b59821793533000683")
 - [Sort Out The Men From Boys](sort-out-the-men-from-boys-1 "5af15a37de4c7f223e00012d")
 - [Sort the Gift Code](sort-the-gift-code "52aeb2f3ad0e952f560005d3")

kata/7-kyu/sort-by-last-char/README.md

@@ -0,0 +1,7 @@
+# [Sort by Last Char](https://www.codewars.com/kata/sort-by-last-char "https://www.codewars.com/kata/57eba158e8ca2c8aba0002a0")
+
+Given a string of words (x), you need to return an array of the words, sorted alphabetically by the final character in each.
+
+If two words have the same last letter, the returned array should show them in the order they appeared in the given string.
+
+All inputs will be valid.

kata/7-kyu/sort-by-last-char/main/Kata.java

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+import static java.util.Comparator.comparingInt;
+import static java.util.stream.Stream.of;
+
+interface Kata {
+  static String[] last(String x) {
+    return of(x.split(" ")).sorted(comparingInt(s -> s.charAt(s.length() - 1))).toArray(String[]::new);
+  }
+}

kata/7-kyu/sort-by-last-char/test/LastWordSortTest.java

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+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.params.provider.Arguments.arguments;
+
+import java.util.stream.Stream;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+class LastWordSortTest {
+  private static Stream<Arguments> testData() {
+    return Stream.of(
+        arguments("man i need a taxi up to ubud", new String[]{"a", "need", "ubud", "i", "taxi", "man", "to", "up"}),
+        arguments("what time are we climbing up the volcano", new String[]{"time", "are", "we", "the", "climbing", "volcano", "up", "what"}),
+        arguments("take me to semynak", new String[]{"take", "me", "semynak", "to"}),
+        arguments("massage yes massage yes massage", new String[]{"massage", "massage", "massage", "yes", "yes"}),
+        arguments("take bintang and a dance please", new String[]{"a", "and", "take", "dance", "please", "bintang"})
+    );
+  }
+
+  @ParameterizedTest
+  @MethodSource("testData")
+  void sample(String s, String[] expected) {
+    assertArrayEquals(expected, Kata.last(s));
+  }
+}