fundamentals 100%

src/main/java/rocks/zipcode/io/quiz4/fundamentals/PalindromeEvaluator.java

@@ -1,10 +1,6 @@
 package rocks.zipcode.io.quiz4.fundamentals;
-
-import java.util.HashSet;
-import java.util.Set;
 import java.util.SortedSet;
 import java.util.TreeSet;
-import java.util.stream.Stream;
 
 /**
  * @author leon on 18/12/2018.
@@ -14,42 +10,30 @@ public class PalindromeEvaluator {
     public static String[] getAllPalindromes(String string) {
 
         SortedSet<String> container = new TreeSet<>();
-        String tempchar;
-        boolean loop;
-
-        //get chars and append to a temp builder
-        //if chars are palindromes, add to hashset
-        //else move to next char
-        //rinse and repeat
-
-//        for (int i = 0; i < string.length() - 1; i++) {
-//            loop = true;
-//            tempchar = String.valueOf(string.charAt(i)); container.add(tempchar);
-//            StringBuilder temp = new StringBuilder(); temp.append(tempchar);
-//            StringBuilder tempreverse = new StringBuilder(); tempreverse.append(tempchar);
-//
-//            while (loop) {
-//                for (int j = i+1; j < string.length(); j++) {
-//                    temp.append(string.charAt(j));
-//                    tempreverse.insert(0, string.charAt(j));
-//                }
-//                if (temp.toString().equals(tempreverse.toString())) {
-//                    container.add(temp.toString());
-//                } else {
-//                    loop = false; }
-//            }
-//        }
-//        return container.stream().toArray(String[]::new);
-        return null;
+        String[] combos = StringEvaluator.getAllPrefixes(string);
+
+        for (String s: combos) {
+            if (string.contains(s) && isPalindrome(s)){
+                container.add(s);
+            }
+        }
+        return container.stream().toArray(String[]::new);
     }
 
-
-
     public static Boolean isPalindrome(String string) {
-        return null;
+        if (reverseString(string).equals(string)) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
     public static String reverseString(String string) {
-        return null;
+        StringBuilder reverse = new StringBuilder();
+
+        for (int i = string.length() - 1; i >= 0; i--) {
+            reverse.append(string.charAt(i));
+        }
+        return reverse.toString();
     }
 }

src/main/java/rocks/zipcode/io/quiz4/fundamentals/StringEvaluator.java

@@ -2,7 +2,6 @@ package rocks.zipcode.io.quiz4.fundamentals;
 
 import java.util.SortedSet;
 import java.util.TreeSet;
-import java.util.stream.Collectors;
 
 /**
  * @author leon on 11/12/2018.