diff --git a/Power Of two/javaSolutionPowerOfTwo.java b/Power Of two/javaSolutionPowerOfTwo.java
new file mode 100644
index 0000000..280353a
--- /dev/null
+++ b/Power Of two/javaSolutionPowerOfTwo.java	
@@ -0,0 +1,11 @@
+//https://leetcode.com/problems/power-of-two/
+class Solution {
+    public boolean isPowerOfTwo(int n) {
+        if(n<=0) return false;
+        if(n==1) return true;
+        if(n%2==1) return false;
+        if(n==2)  return true;
+          
+        return isPowerOfTwo(n/2);
+    }
+}