diff --git a/src/com/codefortomorrow/beginner/chapter2/solutions/VariableTypes.java b/src/com/codefortomorrow/beginner/chapter2/solutions/VariableTypes.java
index 6d9785b..f9946b0 100644
--- a/src/com/codefortomorrow/beginner/chapter2/solutions/VariableTypes.java
+++ b/src/com/codefortomorrow/beginner/chapter2/solutions/VariableTypes.java
@@ -9,6 +9,7 @@
 
 public class VariableTypes {
 
+    @SuppressWarnings("unused")
     public static void main(String[] args) {
         // write your code here
 
@@ -19,15 +20,15 @@ public static void main(String[] args) {
         float decimal = 23.32544f;
 
         // define a double variable on line 21
-        double decimal = 23.2352536d;
+        double number = 23.2352536;
 
         // define a boolean variable on line 24 (Hint: true/false)
-        double dogsOut = true; // the dogs are out :)
+        boolean dogsOut = true; // the dogs are out :)
 
         // define a character variable on line 27
         char letter = 'A';
 
         // define a string variable on line 30
-        char name = "Jeff";
+        String name = "Jeff";
     }
 }