Part1 Java · How does get method of HashMap works in Java? (hashcode) Two unequal object may return same hashcode. When two objects are equal by equals(), they must have same hashcode. · Use java to process word files, FileInutSteam/FileReader · Different ways to crate thread,How to make sure thread-safety (sync method / sync block),What is deadlock? · Can you explain about reflection in Java · Can you explain about autoboxing and unboxing in Java · Spring MVC · Advantage of DI(dependency of injection) · Transaction handling and how to implement it in spring
Part2 ExtJS Concept of ExtJS MVC How to define your own component What's xtype? How to query objet (get one particular component) How to add listener for event How to debug in browser
Part3 SQL What is batch processing and how to perform batch processing in JDBC SQL tuning to improve performance The usage of index, the ways to take full advantage of index How do you prevent SQL Injection List some most frequently used sql function (decode, sum, max) SQL query to find second max salary of employee