I want all questions answer with example and explanation please give me neat explanation otherwise I wil give negative rating

8.a) Give an account of Random collection class b) Discuss the methods of Stack class c) What is the need of Generics? [3+3+4] OR 9.a) Discuss the four types of JDBC driver with suitable diagrams. b) Write a JDBC program to update the amount balance in an account after every withdrawal. Assume the necessary database table. [5+5] 10.a) What is the significance of layout managers? Discuss briefly various layout managers. b) Give an overview of JButton class. [5+5] OR 11.a) Explain delegation event model. b) Write an Applet to draw a smiley picture accept user name as a parameter and display welcome message. [5+5]