solves power of 2

Author: anishLearnsToCode

README.md

@@ -69,7 +69,7 @@
 | 219 | [Contains Duplicate II](https://leetcode.com/problems/contains-duplicate-ii) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ContainsDuplicateII.java) |
 | 225 | [Implement Stack using Queues](https://leetcode.com/problems/implement-stack-using-queues) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/MyStack.java) |
 | 226 | [Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/InvertBinaryTree.java) |
-| 231 | [Power of Two](https://leetcode.com/problems/power-of-two) | Easy |
+| 231 | [Power of Two](https://leetcode.com/problems/power-of-two) | Easy | 
 | 232 | [Implement Queue Using Stacks]() | Easy |
 | 234 | [Palindrome Linked Lists](https://leetcode.com/problems/palindrome-linked-list) | Easy |
 | 235 | [Lowest Common Ancestor of a Binary Search Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree) | Easy |

src/PowerOf2.java

@@ -0,0 +1,11 @@
+public class PowerOf2 {
+    public boolean isPowerOfTwo(int number) {
+        if (number == 1) {
+            return true;
+        } else if (number % 2 == 1 || number == 0) {
+            return false;
+        }
+
+        return isPowerOfTwo(number / 2);
+    }
+}