diff --git a/tech/Java.wiki b/tech/Java.wiki
index a59ebc0..ea002b8 100644
--- a/tech/Java.wiki
+++ b/tech/Java.wiki
@@ -34,6 +34,16 @@ can run on almost anything.
     }
   }}}
 
+=== Copy Constructor ===
+
+{{{
+    public class MyClass{
+        public MyClass(MyClass myclass){
+            //copy constructor here
+        }
+    }
+  }}}
+
 === Deconstructor/Finalize ===
 
 finalize provides security and is called by the garbage collector. We can call