one problem left

StringArrayUtils.java

      * @return true if each letter in the alphabet has been used in the array
      */ // TODO
     public static boolean isPangramic(String[] array) {
-        ArrayList<Character> Chars = new ArrayList<Character>();
+        
+        ArrayList<Character> alpha = new ArrayList<Character>();
        
         for(String str: array){
-            char[] chars = str.toCharArray();
+            char[] chars = str.toLowerCase().replace(" ", "").toCharArray();
             
             for(char car : chars){
-                if(!Chars.contains(car)){
-                    Chars.add(car);
+                if(!alpha.contains(car)){
+                    alpha.add(car);
                 }
             }
-            
         }
         
-        return Chars.size() == 26 ? true : false;
+        return alpha.size() == 26 ? true : false;
     }
     
     
      * @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) {
-        ArrayList<String> strings = new ArrayList<String>();
+        ArrayList<String> strings   = new ArrayList<String>();
         
-        boolean isDuplicated; 
-        for(String str1: array){
-            isDuplicated = false;
-            for(String str2: array){
-                if(str1 == str2){
-                    isDuplicated = true;
-                }
-            }
-            if(!isDuplicated){
-                strings.add(str1);
+        for(int i = 0; i < array.length; i++){
+            for(int j = i; j < array.length; j++){
+                
             }
+        
         }
         
         return strings.toArray(new String[strings.size()]);