test

StringArrayUtils.java

@@ -1,4 +1,4 @@
-
+import java.util.Arrays;
 /**
  * Created by leon on 1/29/18.
  */
@@ -41,13 +41,14 @@ public class StringArrayUtils {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
-
+        boolean output = false;
         for (String test: array){
             if (test.equals(value)){
-                return true;
+                output = true;
+                break;
             }        
         }
-        return false; 
+        return output; 
     }
 
     /**
@@ -55,8 +56,11 @@ public class StringArrayUtils {
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        
-        return null;
+        String[] newArray = new String[array.length];
+        for (int start = 0; start < array.length; start++){
+            newArray[start] = array[array.length-start-1];           
+        }
+        return newArray;
     }
 
     /**
@@ -64,7 +68,13 @@ public class StringArrayUtils {
      * @return true if the order of the array is the same backwards and forwards
      */ // TODO
     public static boolean isPalindromic(String[] array) {
-        return false;
+        boolean output = false;
+        String[] reverseArr = new String[array.length];
+        reverseArr = reverse(array);
+        if (Arrays.equals(reverseArr, array)){
+            output = true;
+        }
+        return output;
     }
 
     /**
@@ -72,7 +82,34 @@ public class StringArrayUtils {
      * @return true if each letter in the alphabet has been used in the array
      */ // TODO
     public static boolean isPangramic(String[] array) {
-        return false;
+        String[] arr = makeSplitStringArray(array);
+        boolean isPang = containsLetter(arr);
+        return isPang;
+    }
+
+    public static boolean containsLetter(String[] array){
+        boolean doesContain = true;
+        String[] alph = new String[]{"a", "b", "c", "d", "e", "f", "g", "h",
+                "i", "j", "k", "l", "m", "n", "o", "p",
+                "q", "r", "s", "t", "u", "v", "w", "x",
+                "y", "z"};
+        for (String check: alph){
+            doesContain = contains(array, check);
+            if(doesContain == false){
+                break;
+            }
+        }
+        return doesContain;
+    }
+
+    public static String[] makeSplitStringArray(String[] array){
+        StringBuilder fullString = new StringBuilder();
+        for(String s : array) {
+            fullString.append(s);
+        }
+        String str = fullString.toString().toLowerCase();
+        String[] individualLetters = str.split("");    
+        return individualLetters;
     }
 
     /**

StringArrayUtilsTest.java

@@ -278,7 +278,19 @@ public class StringArrayUtilsTest {
         Assert.assertFalse(outcome);
     }
 
-
+    @Test
+    public void testContainsLetter(){
+       boolean expected = true;
+       boolean given = StringArrayUtilis
+        
+        
+    }
+    
+    @Test
+    public void testMakeSplitStringArray(){
+        
+        
+    }