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1. Diff between Arraylist and linked list, what is iterator and list iterator, what is enumeration.

2. How to Create a thread. how to handle exceptions in java, what is throwable, diff between throw and throws keywords, have you worked on struts ?? what is Jsp ? Jsp life cycle.

3. Diff B/w Abstraction and Interface. What is diff between method overloading and method overriding, what is static keyword ? what is this keyword ?