Randall Done

StringArrayUtils.java

@@ -1,5 +1,6 @@
- 
-
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
 /**
  * Created by leon on 1/29/18.
  */
@@ -9,7 +10,7 @@ public class StringArrayUtils {
      * @return first element of specified array
      */ // TODO
     public static String getFirstElement(String[] array) {
-        return null;
+       return array[0];
     }
 
     /**
@@ -17,7 +18,7 @@ public class StringArrayUtils {
      * @return second element in specified array
      */
     public static String getSecondElement(String[] array) {
-        return null;
+        return array[1];
     }
 
     /**
@@ -25,7 +26,7 @@ public class StringArrayUtils {
      * @return last element in specified array
      */ // TODO
     public static String getLastElement(String[] array) {
-        return null;
+        return array[array.length -1];
     }
 
     /**
@@ -33,7 +34,7 @@ public class StringArrayUtils {
      * @return second to last element in specified array
      */ // TODO
     public static String getSecondToLastElement(String[] array) {
-        return null;
+        return array[array.length -2];
     }
 
     /**
@@ -42,32 +43,75 @@ public class StringArrayUtils {
      * @return true if the array contains the specified `value`
      */ // TODO
     public static boolean contains(String[] array, String value) {
-        return false;
+        
+       
+       for(String string : array)
+       if(string.equalsIgnoreCase(value)){
+           return true;
+        }
+         return false;
     }
+    
+    //     for(int i=0;i<array.length;i++){
+   //         if(array[i]== value){
+                
+   //             return true;
+  //          }
+    
+
+   // }
+    
+   // return false;
+//}
+    
+
+
 
     /**
      * @param array of String objects
      * @return an array with identical contents in reverse order
      */ // TODO
     public static String[] reverse(String[] array) {
-        return null;
+        String[] answer = new String[array.length];
+        for(int i =0; i<array.length; i++)
+            answer[i] = array[array.length-1-i];
+        return answer;
     }
 
+    
+
     /**
      * @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 answer = false;
+        if(Arrays.equals(array,reverse(array))){
+       answer=true;
+       }
+        return answer;
     }
+    
+
 
     /**
      * @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;
+        boolean isPangramic = false;
+        for(char i = 'A'; i <= 'Z'; i++) {
+        if(Arrays.toString(array).indexOf(i) < 0 && (Arrays.toString(array).indexOf((char) i + 32) < 0)) {
+        isPangramic = false;
+        }else{
+           isPangramic = true;
+         }
+         
+        }
+         return isPangramic; 
     }
+   
+
 
     /**
      * @param array array of String objects
@@ -75,8 +119,25 @@ public class StringArrayUtils {
      * @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 +=1;
+                //}
+             //}
+             //return count;
+            //}
+        
+        int count=0;
+        for(int i =0;i<array.length; i++){
+        if(array[i].equals(value)){
+            count++;
+        }
     }
+    return count;
+}
+
+
 
     /**
      * @param array         array of String objects
@@ -84,24 +145,64 @@ public class StringArrayUtils {
      * @return array with identical contents excluding values of `value`
      */ // TODO
     public static String[] removeValue(String[] array, String valueToRemove) {
-        return null;
-    }
+       //use method from above
+       int index = 0;
+        int count = getNumberOfOccurrences(array,valueToRemove);
+        String[] arr2 = new String[array.length -count];
+        
+        for(int i= 0; i<array.length;i++){
+            if(array[i] != valueToRemove){
+                arr2[index]=array[i];
+            index++;
+        
+     }
+    
+  }
+  return arr2;
+ }
+
+    
 
     /**
      * @param array array of chars
      * @return array of Strings with consecutive duplicates removes
      */ // TODO
     public static String[] removeConsecutiveDuplicates(String[] array) {
-        return null;
+        String removeString = array[0] + " ";
+        for(int i =1; i<array.length; i++){
+         if(!array[i].equals(array[i-1])){
+             removeString+=array[i] + " ";
+            }
+        }
+        String [] removeStringA = removeString.split(" ");
+        return removeStringA;
     }
+    
+    
+    
 
     /**
      * @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 removeString = array[0];
+        for(int i =1; i<array.length; i++){
+            if(array[i].equals(array[i-1])){
+            removeString+=array[i];
+            }
+            else if(!array[i].equals(array[i-1])){
+                removeString += " " + array[i];
+            }   
+                
+                
+        }   
+            String[] removeStringA= removeString.split(" ");
+            
+            return removeStringA;
+            
+        
     }
 
 
-}
+ }

StringArrayUtilsTest.java

@@ -1,5 +1,5 @@
- 
-
+import java.util.List; 
+import java.util.ArrayList;
 import org.junit.Assert;
 import org.junit.Test;
 

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=239
+editor.fx.0.y=30
+objectbench.height=101
+objectbench.width=461
+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=23
+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=130
+target1.y=10
+target2.height=50
+target2.name=StringArrayUtils
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=120
+target2.x=70
+target2.y=70