Commit db33434

@@ -7,13 +7,15 @@ Student ID: 3431709
 
 Read three sentences from the console application. Each sentence should not exceed 80 characters.
 Then, copy each character in each input sentence in a [3 x 80] character array.
-The first sentence should be loaded into the first row in the reverse order of characters – for example,
+
+* The first sentence should be loaded into the first row in the reverse order of characters – for example,
 "mary had a little lamb" should be loaded into the array as "bmal elttil a dah yram".
-The second sentence should be loaded into the second row in the reverse order of words – for example, "mary had a little lamb" should be loaded into the array as "lamb little a had mary".
-The third sentence should be loaded into the third row where if the index of the array is divisible by 5,
+* The second sentence should be loaded into the second row in the reverse order of words – for example, "mary had a little lamb" should be loaded into the array as "lamb little a had mary".
+* The third sentence should be loaded into the third row where if the index of the array is divisible by 5,
 then the corresponding character is replaced by the letter ‘z’ – for example,
 "mary had a little lamb" should be loaded into the array as "mary zad azlittze lazb" – that is,
 characters in index positions 5, 10, 15, and 20 were replaced by ‘z’.
+
 Note that an empty space is also a character, and that the index starts from position 0.
 Now print the contents of the character array on the console.
 

@@ -22,7 +22,14 @@ public class ReversedSentence {
   }
 
   public static String reverseByWord(String s) {
-    return "";
+    String[] words = s.split(" ");
+    String[] result = new String[words.length];
+
+    for (int i = 0; i < words.length; i++) {
+      String word = words[i];
+      result[words.length - i - 1] = word;
+    }
+    return String.join(" ", result);
   }
 
   public static String truncateSentence(String s) {

@@ -25,4 +25,9 @@ public class ReversedSentenceTest extends TestCase {
     assertEquals(
         "bmal elttil a dah yram", ReversedSentence.reverseByCharacter("mary had a little lamb"));
   }
+
+  public void testReverseByWord() {
+    assertEquals(
+        "lamb little a had mary", ReversedSentence.reverseByWord("mary had a little lamb"));
+  }
 }