@@ -0,0 +1,178 @@
+//Interface Method Defination always Public%0Apublic class CallDef implements CallBack %7B%0A%09public void CallBack(int param)%7B%0A%09%09System.out.println(%22Interface Demo %22+param);%0A%09%09%0A%09%7D%0A%7D%0A%0A%0A

Create CallDef.java