diff --git a/to-lower-case/younlll.java b/to-lower-case/younlll.java
new file mode 100644
index 0000000000..042bf732a7
--- /dev/null
+++ b/to-lower-case/younlll.java
@@ -0,0 +1,6 @@
+class Solution {
+    public String toLowerCase(String s) {
+        return s.toLowerCase();
+    }
+}
+