diff --git a/javacodechallenges/src/main/java/com/linkedin/javacodechallenges/App.java b/javacodechallenges/src/main/java/com/linkedin/javacodechallenges/App.java
index 18ab8098..cb6a68e0 100644
--- a/javacodechallenges/src/main/java/com/linkedin/javacodechallenges/App.java
+++ b/javacodechallenges/src/main/java/com/linkedin/javacodechallenges/App.java
@@ -4,8 +4,18 @@
 
 public class App {
 
+    //atleast six characters
+    //one upper case letter
+    //one lowercase letter
+    //one number
     public static boolean isPasswordComplex(String password) {
-        return false;
+
+        return password.length() >=6 
+            && password.matches(".*\\d.*")
+            && password.matches(".*[a-z].*")
+            && password.matches(".*[A-Z].*");
+
+        // n
     }
 
     public static void main(String[] args) {
diff --git a/javacodechallenges/target/classes/com/linkedin/javacodechallenges/App.class b/javacodechallenges/target/classes/com/linkedin/javacodechallenges/App.class
index 6f7bd849..48016350 100644
Binary files a/javacodechallenges/target/classes/com/linkedin/javacodechallenges/App.class and b/javacodechallenges/target/classes/com/linkedin/javacodechallenges/App.class differ