need pack to finsh

StringArrayUtils.java

@@ -1,15 +1,18 @@
- 
 
 /**
  * Created by leon on 1/29/18.
  */
+import java.util.Arrays;
 public class StringArrayUtils {
     /**
      * @param array array of String objects
      * @return first element of specified array
      */ // TODO
     public static String getFirstElement(String[] array) {
-        return null;
+        String first = "";
+
+        first += array[0];
+        return first;
     }
 
     /**
@@ -17,7 +20,11 @@ public class StringArrayUtils {
      * @return second element in specified array
      */
     public static String getSecondElement(String[] array) {
-        return null;
+        String second = "";
+
+        second += array[1];
+
+        return second;
     }
 
     /**
@@ -25,7 +32,10 @@ public class StringArrayUtils {
      * @return last element in specified array
      */ // TODO
     public static String getLastElement(String[] array) {
-        return null;
+        String last = "";
+
+        last += array[array.length-1];
+        return last;
     }
 
     /**
@@ -33,7 +43,10 @@ public class StringArrayUtils {
      * @return second to last element in specified array
      */ // TODO
     public static String getSecondToLastElement(String[] array) {
-        return null;
+        String secLast = "";
+
+        secLast += array[array.length-2];
+        return secLast;
     }
 
     /**
@@ -42,7 +55,17 @@ public class StringArrayUtils {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
-        return false;
+        boolean contain = false;
+
+        for(String s : array){
+            if(s==value){
+                contain = true;
+
+            }
+
+        }
+
+        return contain;
     }
 
     /**
@@ -50,7 +73,17 @@ public class StringArrayUtils {
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        return null;
+
+        String reversal;
+
+        for(int i = 0; i<array.length/2; i++){
+            reversal = array[i];
+            array[i] = array[array.length - i -1];
+            array[array.length - i -1] = reversal;
+        }
+
+        return array;
+
     }
 
     /**
@@ -58,7 +91,18 @@ 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 pal = false;
+
+        String reversal;
+
+        for(int i = 0; i<array.length/2; i++){
+
+            if(array[i] == array[array.length - i -1]){
+                pal = true;
+            }
+
+        }
+        return pal;
     }
 
     /**
@@ -66,7 +110,27 @@ 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;
+        boolean pan = false;
+
+        StringBuilder build = new StringBuilder();
+
+        for(String s : array){
+            build.append(s);
+        }
+
+        String ofArray = "";
+        ofArray = build.toString();
+        for(char i = 'A'; i <= 'Z'; i++){ 
+            if((ofArray.indexOf(i) < 0) && (ofArray.indexOf((char)(i+32)) < 0))
+            { // goes thru the ASCII list
+                pan = false;
+            }
+            else{
+                pan = true;
+            }
+        }
+        return pan;
+
     }
 
     /**
@@ -75,7 +139,16 @@ public class StringArrayUtils {
      * @return number of occurrences the specified `value` has occurred
      */ // TODO
     public static int getNumberOfOccurrences(String[] array, String value) {
-        return 0;
+        int occurs = 0;
+
+        for(int i=0; i<array.length; i++){
+            if(value.equals(array[i])){
+                occurs += 1 ;
+            }
+
+        }
+
+        return occurs;
     }
 
     /**
@@ -84,7 +157,21 @@ public class StringArrayUtils {
      * @return array with identical contents excluding values of `value`
      */ // TODO
     public static String[] removeValue(String[] array, String valueToRemove) {
-        return null;
+        int count = 0;
+        int occur = getNumberOfOccurrences(array, valueToRemove);
+
+        String[] exclude = new String[array.length - occur];
+        for(String i : array){
+            if(i != valueToRemove){ 
+
+                exclude[count] = i;
+                count++;
+
+            }
+
+        }
+
+        return exclude;
     }
 
     /**
@@ -92,16 +179,36 @@ public class StringArrayUtils {
      * @return array of Strings with consecutive duplicates removes
      */ // TODO
     public static String[] removeConsecutiveDuplicates(String[] array) {
-        return null;
+        String[] excluded = new String[array.length];
+        int newArrIndex = 0;
+        excluded[newArrIndex] = array[0];
+
+        newArrIndex++;
+        for(int i = 1; i<array.length; i++){
+            if(!(excluded[newArrIndex-1]).equals(array[i])){
+                excluded[newArrIndex] = array[i];
+                newArrIndex++;
+                
+            }    
+        }
+        
+        String[] newArr = new String[newArrIndex];
+        System.arraycopy(excluded, 0, newArr, 0, newArrIndex);
+        
+        return newArr;
+
     }
 
     /**
      * @param array array of chars
-     * @return array of Strings with each consecutive duplicate occurrence concatenated as a single string in an array of Strings
+     * @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) {
+        String[] newArr = new String[array.length]; 
+        
+        
         return null;
     }
 
-
 }

StringArrayUtilsTest.java

@@ -261,6 +261,7 @@ public class StringArrayUtilsTest {
         Assert.assertTrue(outcome);
     }
 
+    
     @Test
     public void testIsPangramic2() {
         String[] array = {"The", "quick", "onyx", "goblin", "jumps", "over", "the", "lazy", "dwarf"};
@@ -282,9 +283,7 @@ public class StringArrayUtilsTest {
         boolean outcome = StringArrayUtils.isPangramic(array);
         Assert.assertFalse(outcome);
     }
-
-
-
+    
 
 
 
@@ -365,10 +364,6 @@ public class StringArrayUtilsTest {
 
 
 
-
-
-
-
     @Test
     public void testRemovePackDuplicates1() {
         String[] array = {"a", "a", "a", "b", "c", "c", "a", "a", "d"};

package.bluej

@@ -0,0 +1,42 @@
+#BlueJ package file
+dependency1.from=StringArrayUtilsTest
+dependency1.to=StringArrayUtils
+dependency1.type=UsesDependency
+editor.fx.0.height=722
+editor.fx.0.width=800
+editor.fx.0.x=-79
+editor.fx.0.y=-818
+objectbench.height=101
+objectbench.width=776
+package.divider.horizontal=0.6
+package.divider.vertical=0.8007380073800738
+package.editor.height=427
+package.editor.width=674
+package.editor.x=0
+package.editor.y=22
+package.frame.height=600
+package.frame.width=800
+package.numDependencies=1
+package.numTargets=2
+package.showExtends=true
+package.showUses=true
+project.charset=UTF-8
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=50
+target1.name=StringArrayUtilsTest
+target1.showInterface=false
+target1.type=UnitTestTargetJunit4
+target1.width=150
+target1.x=300
+target1.y=30
+target2.height=50
+target2.name=StringArrayUtils
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=120
+target2.x=240
+target2.y=210