1. What is mean by Collections in Java?
  2. What are all the Classes and Interfaces that are available in the collections?
  3. What is a Class?
  4. What is an Object?
  5. What are the Oops concepts?
  6. What is Inheritance?
  7. What are the differences between C++ and Java?
  8. List the features of Java Programming language.
  9. What do you understand by Java virtual machine?
  10. What is the difference between JDK, JRE, and JVM?
  11. How many types of memory areas are allocated by JVM?
  12. What is JIT compiler?
  13. What is the platform?
  14. What is classloader?
  15. What is the default value of the local variables?

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