1. Define a Java Class.
  2. What is an object in Java and how is it created?
  3. What is Object Oriented Programming?
  4. What are the main concepts of OOPs in Java?
  5. What is the difference between a local variable and an instance variable?
  6. What is final keyword in Java?
  7. What is an infinite loop in Java? Explain with an example.
  8. What is the difference between this() and super() in Java?
  9. What is Java String Pool?
  10. What is constructor chaining in Java?
  11. What is a classloader in Java?
  12. What is the difference between an array and an array list?
  13. What is a Map in Java?

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