done

src/main/java/io/zipcoder/Problem2.java

@@ -1,4 +1,57 @@
 package io.zipcoder;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 public class Problem2 {
+
+    String sequence = "";
+    ArrayList<Integer> fibbonaciS = new ArrayList<Integer>();
+    static List<Integer> fibList;
+
+    public Problem2(){
+        fibbonaciS.add(0);
+        fibbonaciS.add(1);
+    }
+
+    public String fibbonaciIteration(int n){
+        String sequence = "";
+        int endNumber = 1;
+
+        while(endNumber < n){
+            int twoBeforeEnd = fibbonaciS.get(fibbonaciS.size() - 2);
+            int oneBeforeEnd = fibbonaciS.get(fibbonaciS.size() - 1);
+            endNumber = twoBeforeEnd + oneBeforeEnd;
+            fibbonaciS.add(endNumber);
+        }
+        for(int j = 0; j < fibbonaciS.size()-1; j++){
+            sequence += fibbonaciS.get(j) + ", ";
+        }
+        return sequence.substring(0, sequence.length()-2);
+    }
+    //currentIndex = (CurrentIndex - 1) + (currentIndex - 2)
+
+    public String fibRecursion(int n, List<Integer> fibList){
+        if(fibList.size() == 0){
+            fibList.add(0);
+            fibList.add(1);
+        }
+        int endNum = fibList.get(fibList.size()-1) + fibList.get(fibList.size()-2);
+        if (endNum > n){
+            String sequence1 = "";
+            for (int i = 0; i < fibList.size();i++) {
+
+                sequence1 += fibList.get(i) + ", ";
+            }
+            return sequence1.substring(0, sequence1.length()-2);
+
+        }
+        else{
+          fibList.add(endNum);
+          return fibRecursion(n, fibList);
+        }
+
+
+    }
 }

src/test/java/io/zipcoder/Problem2Test.java

@@ -1,4 +1,39 @@
 package io.zipcoder;
 
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
 public class Problem2Test {
+
+    Problem2 test;
+
+    @Before
+    public void setUp(){
+       test  = new Problem2();
+    }
+
+    @Test
+    public void fibbonaciTest(){
+        String fibbonaci = "0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144";
+        String actual = test.fibbonaciIteration(150);
+
+        Assert.assertEquals(fibbonaci, actual);
+    }
+    @Test
+    public void fibbonaciTest2(){
+        String fib = "0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393";
+        String actual = test.fibbonaciIteration(150000);
+        Assert.assertEquals(fib, actual);
+    }
+    @Test
+    public void fibRecursionTest(){
+        String fibbonaci = "0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144";
+        List<Integer> fibList = new ArrayList<Integer>();
+        String actual = test.fibRecursion(150, fibList);
+        Assert.assertEquals(fibbonaci, actual);
+    }
 }