Added scrabble-score exercise

config.json

@@ -16,7 +16,8 @@
     "grade-school",
     "space-age",
     "gigasecond",
-    "triangle"
+    "triangle",
+    "scrabble-score"
   ],
   "deprecated": [
   ],

scrabble-score/build.gradle

@@ -0,0 +1,11 @@
+apply plugin: "java"
+apply plugin: "eclipse"
+apply plugin: "idea"
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  testCompile "junit:junit:4.10"
+}

scrabble-score/example.java

@@ -0,0 +1,59 @@
+public class Scrabble {
+
+    private String word;
+
+    private static final Map<Character, Integer> letterScores = new HashMap<>();
+
+    static {
+        letterScores.put('a', 1);
+        letterScores.put('e', 1);
+        letterScores.put('i', 1);
+        letterScores.put('o', 1);
+        letterScores.put('u', 1);
+        letterScores.put('l', 1);
+        letterScores.put('n', 1);
+        letterScores.put('r', 1);
+        letterScores.put('s', 1);
+        letterScores.put('t', 1);
+        letterScores.put('d', 2);
+        letterScores.put('g', 2);
+        letterScores.put('b', 3);
+        letterScores.put('c', 3);
+        letterScores.put('m', 3);
+        letterScores.put('p', 3);
+        letterScores.put('f', 4);
+        letterScores.put('h', 4);
+        letterScores.put('v', 4);
+        letterScores.put('w', 4);
+        letterScores.put('y', 4);
+        letterScores.put('k', 5);
+        letterScores.put('j', 8);
+        letterScores.put('x', 8);
+        letterScores.put('q', 10);
+        letterScores.put('z', 10);
+    }
+
+    private Object score;
+
+    public Scrabble(String word) {
+        this.word = word;
+    }
+
+    public int getScore() {
+        return getScore(word);
+    }
+
+    public static int getScore(String input) {
+        if (input == null || input.trim().isEmpty()) {
+            return 0;
+        }
+
+        int score = 0;
+
+        for (char letter : input.toLowerCase().toCharArray()) {
+            score += letterScores.get(letter);
+        }
+
+        return score;
+    }
+}

scrabble-score/src/main/java/Scrabble.java

@@ -0,0 +1,2 @@
+public class Scrabble {
+}

scrabble-score/src/test/java/ScrabbleScoreTest.java

@@ -0,0 +1,67 @@
+import org.junit.Test;
+
+public class ScrabbleScoreTest {
+
+    @Test
+    public void emptyWordScoresZero() {
+        Scrabble scrabble = new Scrabble("");
+
+        assertEquals(scrabble.getScore(), 0);
+    }
+
+    @Test
+    public void whitespaceWordScoresZero() {
+        Scrabble scrabble = new Scrabble(" \t\n");
+
+        assertEquals(scrabble.getScore(), 0);
+    }
+
+    @Test
+    public void nullScoresZero() {
+        Scrabble scrabble = new Scrabble(null);
+
+        assertEquals(scrabble.getScore(), 0);
+    }
+
+    @Test
+    public void scoresVeryShortWord() {
+        Scrabble scrabble = new Scrabble("a");
+
+        assertEquals(scrabble.getScore(), 1);
+    }
+
+    @Test
+    public void scoresAnotherVeryShortWord() {
+        Scrabble scrabble = new Scrabble("f");
+
+        assertEquals(scrabble.getScore(), 4);
+    }
+
+    @Test
+    public void simpleWordScoresTheNumberOfLetters() {
+        Scrabble scrabble = new Scrabble("street");
+
+        assertEquals(scrabble.getScore(), 6);
+    }
+
+    @Test
+    public void complicatedWordScoresMore() {
+        Scrabble scrabble = new Scrabble("quirky");
+
+        assertEquals(scrabble.getScore(), 22);
+    }
+
+    @Test
+    public void scoresAreCaseInsensitive() {
+        Scrabble scrabble = new Scrabble("MULTIBILLIONAIRE");
+
+        assertEquals(scrabble.getScore(), 20);
+    }
+
+    @Test
+    public void convenientScoring() {
+        Scrabble scrabble = new Scrabble("alacrity");
+
+        assertEquals(scrabble.getScore(), 13);
+    }
+}