KPIT Technologies Associate Engineer interview questions

1)What are microcontrollers registers 2)What are different convertors?

In technical interview round first they tell me to introduce myself.Then they asked me about my projects.Then they asked me about my domain,i tell java.Then they asked the following questions... 1. What is scope of a variable, explain with examples 2. Constructor and destructor 3. Method overloading and overriding 4.Is java is purely oop language 5.Difference between final finally and finalize 6.Is object creation is possible for abstract class? and some basics core java questions Then they told me to write a code on Palindrome string checking and Fibonacci series.