solves power of 4

Author: anishLearnsToCode

Diff for: src/PowerOf4.java

@@ -0,0 +1,13 @@
+public class PowerOf4 {
+    public static boolean isPowerOfFour(int number) {
+        if (number == 0) {
+            return false;
+        }
+
+        while (number % 4 == 0) {
+            number /= 4;
+        }
+
+        return number == 1;
+    }
+}