diff --git a/66_Number/java/main.class b/66_Number/java/Number1.java
similarity index 99%
rename from 66_Number/java/main.class
rename to 66_Number/java/Number1.java
index c3df4ebf..c1d71bda 100644
--- a/66_Number/java/main.class
+++ b/66_Number/java/Number1.java
@@ -4,7 +4,7 @@ import java.util.Arrays;
 import java.util.Random;
 import java.util.Scanner;
 
-public class Number {
+public class Number1 {
 
     public static int points = 0;