finally done

pom.xml

@@ -7,6 +7,18 @@
     <groupId>com.zipcodewilmington.labs</groupId>
     <artifactId>arrayutils</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>8</source>
+                    <target>8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
     <dependencies>
         <dependency>
             <groupId>junit</groupId>

src/main/java/com/zipcodewilmington/StringArrayUtils.java

@@ -1,5 +1,9 @@
 package com.zipcodewilmington;
 
+import java.util.Arrays;
+import java.util.Hashtable;
+import java.util.Map;
+
 /**
  * Created by leon on 1/29/18.
  */
@@ -9,7 +13,7 @@ public class StringArrayUtils {
      * @return first element of specified array
      */ // TODO
     public static String getFirstElement(String[] array) {
-        return null;
+        return array[0];
     }
 
     /**
@@ -17,7 +21,7 @@ public class StringArrayUtils {
      * @return second element in specified array
      */
     public static String getSecondElement(String[] array) {
-        return null;
+        return array[1];
     }
 
     /**
@@ -25,7 +29,8 @@ public class StringArrayUtils {
      * @return last element in specified array
      */ // TODO
     public static String getLastElement(String[] array) {
-        return null;
+        String lastElement = array[array.length - 1];
+        return lastElement;
     }
 
     /**
@@ -33,7 +38,8 @@ public class StringArrayUtils {
      * @return second to last element in specified array
      */ // TODO
     public static String getSecondToLastElement(String[] array) {
-        return null;
+        String getSecondToLastElement = array[array.length - 2];
+        return getSecondToLastElement;
     }
 
     /**
@@ -42,7 +48,16 @@ public class StringArrayUtils {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
+        for (String a : array) {
+
+            if (a == value) {
+                return true;
+            }
+
+        }
+
         return false;
+
     }
 
     /**
@@ -50,7 +65,15 @@ public class StringArrayUtils {
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        return null;
+        String[] test = new String[array.length];
+
+        int j = 0;
+
+        for (int i = array.length - 1; i >= 0; i--) {
+            test[j] = array[i];
+            j++;
+        }
+        return test;
     }
 
     /**
@@ -58,6 +81,13 @@ public class StringArrayUtils {
      * @return true if the order of the array is the same backwards and forwards
      */ // TODO
     public static boolean isPalindromic(String[] array) {
+
+        for ( int i = 0; i < array.length; i++) {
+            if (array[i].equals(array[array.length-1-i])){
+                return true;
+            }
+
+        }
         return false;
     }
 
@@ -66,7 +96,26 @@ public class StringArrayUtils {
      * @return true if each letter in the alphabet has been used in the array
      */ // TODO
     public static boolean isPangramic(String[] array) {
+
+        int count = 0;
+        String str = String.join(" ", array).toLowerCase();
+
+
+        String [] alphabet = {"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 (int i = 0; i < alphabet.length; i++) {
+            if(str.contains(alphabet[i])){
+                count++;
+            }
+        }
+        System.out.println(count);
+        if (count >= 26) {
+
+            return true;
+        }
         return false;
+
+
     }
 
     /**
@@ -75,7 +124,15 @@ public class StringArrayUtils {
      * @return number of occurrences the specified `value` has occurred
      */ // TODO
     public static int getNumberOfOccurrences(String[] array, String value) {
-        return 0;
+        int counter = 0;
+
+        for (int i = 0; i < array.length; i++) {
+
+            if (array[i] == value) {
+                counter++;
+            }
+        }
+        return counter;
     }
 
     /**
@@ -84,7 +141,23 @@ public class StringArrayUtils {
      * @return array with identical contents excluding values of `value`
      */ // TODO
     public static String[] removeValue(String[] array, String valueToRemove) {
-        return null;
+        int x = getNumberOfOccurrences(array, valueToRemove);
+
+        String[] array2 = new String[array.length - x];
+
+        int counter = 0;
+
+        for (int i = 0; i < array.length; i++) {
+            if (array [i] != valueToRemove) {
+                array2 [counter] = array [i];
+                        counter++;
+
+
+            }
+
+
+        }
+        return array2;
     }
 
     /**
@@ -92,7 +165,20 @@ public class StringArrayUtils {
      * @return array of Strings with consecutive duplicates removes
      */ // TODO
     public static String[] removeConsecutiveDuplicates(String[] array) {
-        return null;
+        String [] str1 = new String[array.length];
+        String lastValue = "";
+        int counter = 0;
+
+        for(int i = 0; i < array.length; i++) {
+
+           if (!array[i].equals(lastValue)) {
+               lastValue = array[i];
+               str1[counter] = array[i];
+               counter++;
+           }
+        }
+        String [] str2 = Arrays.copyOf(str1, counter);
+        return str2;
     }
 
     /**
@@ -100,7 +186,29 @@ public class StringArrayUtils {
      * @return array of Strings with each consecutive duplicate occurrence concatenated as a single string in an array of Strings
      */ // TODO
     public static String[] packConsecutiveDuplicates(String[] array) {
-        return null;
+        String [] str1 = new String[array.length];
+        String lastVal = array[0];
+        String running = array[0];
+        int counter = 0;
+
+        for (int i = 1; i < array.length; i++) {
+            if(!array[i].equals(lastVal)) {
+                lastVal = array[i];
+                str1[counter] = running;
+                running = array[i];
+                counter++;
+
+
+            }else {
+                running = running + array[i];
+            }
+        }
+        str1[counter] = running;
+
+        String [] str2 = Arrays.copyOf(str1, counter+1 );
+
+
+        return str2;
     }
 
 

src/test/java/com/zipcodewilmington/StringArrayUtilsTest.java

@@ -369,6 +369,7 @@ public class StringArrayUtilsTest {
 
 
 
+
     @Test
     public void testRemovePackDuplicates1() {
         String[] array = {"a", "a", "a", "b", "c", "c", "a", "a", "d"};