First PR

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

@@ -1,18 +1,40 @@
 package rocks.zipcode.io.quiz4.fundamentals;
 
+
+import com.sun.deploy.util.StringUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * @author leon on 18/12/2018.
  */
 public class PalindromeEvaluator {
     public static String[] getAllPalindromes(String string) {
+        char[] arr = string.toCharArray();
+        for (char c : arr){
+            System.out.println(c);
+        }
         return null;
     }
 
     public static Boolean isPalindrome(String string) {
-        return null;
+        string.toLowerCase();
+        for (int i = 0; i < string.length()/2; i++) {
+            if (string.charAt(string.length()-1 - i) != string.charAt(i)){
+                return false;
+            }
+
+        }
+
+        return true;
     }
 
     public static String reverseString(String string) {
-        return null;
+        String newStr = "";
+        for (int i = 1; i <= string.length(); i++){
+            newStr += string.substring(string.length() - i , string.length() - i + 1);
+        }
+        return newStr;
     }
 }

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

@@ -5,6 +5,7 @@ package rocks.zipcode.io.quiz4.fundamentals;
  */
 public class StringEvaluator {
     public static String[] getAllPrefixes(String string) {
+
         return null;
     }