Changes for completed file

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 +1,12 @@
 package com.zipcodewilmington;
 
+import com.sun.tools.javac.util.ArrayUtils;
+
+import java.sql.SQLOutput;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 /**
  * Created by leon on 1/29/18.
  */
@@ -9,7 +16,9 @@ public class StringArrayUtils {
      * @return first element of specified array
      */ // TODO
     public static String getFirstElement(String[] array) {
-        return null;
+
+        String firstElement = array[0];
+        return firstElement;
     }
 
     /**
@@ -17,7 +26,9 @@ public class StringArrayUtils {
      * @return second element in specified array
      */
     public static String getSecondElement(String[] array) {
-        return null;
+
+        String secondElement = array[1];
+        return secondElement;
     }
 
     /**
@@ -25,7 +36,9 @@ 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 +46,9 @@ public class StringArrayUtils {
      * @return second to last element in specified array
      */ // TODO
     public static String getSecondToLastElement(String[] array) {
-        return null;
+
+        String secondToLastElement = array[array.length - 2];
+        return secondToLastElement;
     }
 
     /**
@@ -42,7 +57,8 @@ public class StringArrayUtils {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
-        return false;
+        Arrays.asList(array).contains(value);
+        return true;
     }
 
     /**
@@ -50,7 +66,16 @@ public class StringArrayUtils {
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        return null;
+        String tmp;
+        for (int i = 0; i < array.length / 2; i++) {
+            tmp = array[i];
+            array[i] = array[array.length - 1 - i];
+            array[array.length - 1 - i] = tmp;
+        }
+
+        //System.out.println(array);
+
+        return array;
     }
 
     /**
@@ -58,7 +83,19 @@ 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;
+        int i1 = 0;
+        int i2 = array.length - 1;
+
+        while (i2 > i1) {
+            if (array[i1] != array[i2]) {
+                return false;
+            }
+            ++i1;
+            --i2;
+        }
+
+
+        return true;
     }
 
     /**
@@ -66,7 +103,15 @@ 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 str = String.join("", array).toLowerCase();
+        for (char i = 'a'; i <= 'z'; i++) {
+            if (str.contains(String.valueOf(i))) {
+                continue;
+            } else {
+                return false;
+            }
+        }
+        return true;
     }
 
     /**
@@ -75,24 +120,55 @@ 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].contains(value)) {
+                counter++;
+            }
+        }
+        return counter;
     }
 
+
     /**
      * @param array         array of String objects
      * @param valueToRemove value to remove from array
      * @return array with identical contents excluding values of `value`
      */ // TODO
     public static String[] removeValue(String[] array, String valueToRemove) {
-        return null;
+        String[] newArr = new String[array.length - 1];
+        int counter = 0;
+        for (String i : array) {
+            if (!i.equals(valueToRemove)) {
+                newArr[counter++] = i;
+            }
+        }
+        return newArr;
     }
 
+
     /**
      * @param array array of chars
      * @return array of Strings with consecutive duplicates removes
      */ // TODO
     public static String[] removeConsecutiveDuplicates(String[] array) {
-        return null;
+        ArrayList<String> newArray = new ArrayList<>();
+
+        newArray.add(array[0]);
+        String last = array[0];
+
+        for (int i = 1; i < array.length; i++) {
+            String nextWord = array[i];
+            if (nextWord.equals(last)) {
+                newArray.set(newArray.size() - 1, newArray.get(newArray.size() - 1));
+            } else {
+                newArray.add(nextWord);
+                last = nextWord;
+            }
+        }
+
+
+        return newArray.toArray(new String[newArray.size() - 1]);
     }
 
     /**
@@ -100,8 +176,24 @@ 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;
-    }
 
+        ArrayList<String> newArray = new ArrayList<>();
 
+        newArray.add(array[0]);
+        String last = array[0];
+
+        for (int i = 1; i < array.length; i++) {
+            String nextWord = array[i];
+            if (nextWord.equals(last)) {
+                newArray.set(newArray.size() - 1, newArray.get(newArray.size() - 1) + nextWord);
+            } else {
+                newArray.add(nextWord);
+                last = nextWord;
+            }
+        }
+
+        return newArray.toArray(new String[newArray.size() - 1]);
+    }
 }
+
+