diff --git a/src/ClassFile.hs b/src/ClassFile.hs
index d5322a1..08f2038 100644
--- a/src/ClassFile.hs
+++ b/src/ClassFile.hs
@@ -30,6 +30,7 @@
 
 import Data.Word
 import Data.Int
+import Data.ByteString
 
 data ConstantInfo = ClassInfo Word16
                   | FieldRefInfo Word16 Word16
@@ -48,15 +49,45 @@ data MemberInfo = MemberInfo {
 } deriving Show
 
 data ClassFile = ClassFile {    
-    magic :: Word32,
-    minorVersion :: Word16,
-    majorVersion :: Word16,
     constantPool :: [ConstantInfo],
     accessFlags :: Word16,
     thisClass :: Word16,
-    superClass :: Word16,
-    interfaces :: [Word16],
     fields :: [MemberInfo],
     methods :: [MemberInfo],
     attributes :: [Attribute]
-} deriving Show
\ No newline at end of file
+} deriving Show
+
+class Serializable a where 
+    serialize :: a -> [Word8] -> [Word8]
+
+instance Serializable ClassFile where 
+    serialize :: ClassFile -> [Word8] -> [Word8]
+    serialize classfile buffer = buffer ++ [0xC0, 0xFE, 0xBA, 0xBE] 
+                                        ++ [0, 0]
+                                        ++ [0, 49]
+                                        ++ [0, 1]
+                                        ++ [0, 1]
+                                        ++ [0, 0]
+                                        ++ [0, 0]
+                                        ++ [0, 0]
+                                        ++ [0, 0]
+                                        ++ [0, 0]
+                                        ++ [0, 0]
+
+                                        
+
+
+example = ClassFile{
+    constantPool,
+    accessFlags,
+    thisClass,
+    fields,
+    methods,
+    attributes
+    } where 
+        constantPool = []
+        accessFlags = 1
+        thisClass = 0
+        fields = []
+        methods = []
+        attributes = []