Name : Naveenkumar S Roll no : 2017103028 This has two Java applications. JavaApplication2 file has two packages which are merged by import feature and also includes static,Scanner,object creation with arrays. JavaApplication9 file has a package which includes concepts like inheritance,interface,abstract,super keyword and all those concepts in the JavaApplication2 file. Both files works on the basis that they will get input from user such as name and marks department-wise and it will manipulate the average of each students and assign a unique roll no to students automatically and display the student data with a default student format. NewClass.java file is the supporting package for the JavaApplication2.java file.