complete

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

@@ -1,5 +1,10 @@
 package com.zipcodewilmington;
 
+import com.sun.tools.javac.util.ArrayUtils;
+import com.sun.xml.internal.xsom.util.DeferedCollection;
+
+import java.util.*;
+
 /**
  * Created by leon on 1/29/18.
  */
@@ -25,15 +30,16 @@ public static String getSecondElement(String[] array) {
      * @return last element in specified array
      */ // TODO
     public static String getLastElement(String[] array) {
-        return null;
+        return array[array.length - 1];
     }
 
     /**
      * @param array array of String objects
      * @return second to last element in specified array
      */ // TODO
     public static String getSecondToLastElement(String[] array) {
-        return null;
+        return array[array.length - 2];
+
     }
 
     /**
@@ -42,66 +48,142 @@ public static String getSecondToLastElement(String[] array) {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
-        return false;
+        boolean hasString = false;
+        for (int i = 0; i < array.length; i++) {
+            if (array[i].equals(value)) {
+                hasString = true;
+
+            }
+
+        }
+        return hasString;
     }
 
+
     /**
      * @param array of String objects
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        return null;
+        ArrayList<String> arrList = new ArrayList<String>(Arrays.asList(array));
+        Collections.reverse(arrList);
+
+
+        array = arrList.toArray(new String[arrList.size()]);
+        return array;
     }
 
     /**
      * @param array array of String objects
      * @return true if the order of the array is the same backwards and forwards
      */ // TODO
     public static boolean isPalindromic(String[] array) {
-        return false;
+        boolean isPal = true;
+        for (int i = 0; i < array.length / 2; i++) {
+            if (array[i] == array[array.length - (i + 1)]) {
+            } else {
+                isPal = false;
+            }
+        }
+        return isPal;
     }
 
     /**
      * @param array array of String objects
      * @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 = Arrays.toString(array);
+        boolean[] alphabetList = new boolean[26];
+
+
+        int index = 0;
+        int verifier = 1;
+        String str2 = str.toUpperCase();
+        for (int i = 0; i < str2.length(); i++) {
+            if (str2.charAt(i) >= 'A' && str2.charAt(i) <= 'Z') {
+                index = str2.charAt(i) - 'A';
+            }
+            alphabetList[index] = true;
+        }
+        for (int i = 0; i <= 25; i++) {
+            if (alphabetList[i] == false) {
+                verifier = 0;}
+            }
+            return verifier == 1;
+        }
+
+
+
+
 
     /**
      * @param array array of String objects
      * @param value value to check array for
      * @return number of occurrences the specified `value` has occurred
      */ // TODO
     public static int getNumberOfOccurrences(String[] array, String value) {
-        return 0;
+        int count = 0;
+        for (String s : array) {
+            if (s.equals(value))
+                count++;
+        }
+        return count;
     }
 
+
     /**
      * @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;
+
+        ArrayList<String> arrList = new ArrayList<String>(Arrays.asList(array));
+        for (int i = 0; i < arrList.size(); i++)
+            if (arrList.get(i).equals(valueToRemove)) {
+                arrList.remove(arrList.get(i));
+            }
+        return arrList.toArray(new String[arrList.size()]);
     }
 
     /**
      * @param array array of chars
      * @return array of Strings with consecutive duplicates removes
      */ // TODO
     public static String[] removeConsecutiveDuplicates(String[] array) {
-        return null;
+
+
+        ArrayList<String> arrList = new ArrayList<String>();
+        arrList.add(array[0]);
+
+        for (int i = 1; i < array.length; i++)
+            if (array[i] != array[i-1]) {
+                arrList.add(array[i]);
+            }
+        return arrList.toArray(new String[arrList.size()]);
     }
 
     /**
      * @param array array of chars
      * @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 catt = "";
+        String temp = array[0];
+        for (int i = 0; i < array.length; i++) {
+            if (temp == array[i]) {
+                catt += array[i];
+            } else {
+                temp = array[i];
+                catt += " " + temp;
+            }
+        }
+        String[] arr = catt.split(" ");
 
+        return arr;
 
+    }
 }
+
+