Cognizant – Java Interview Questions

Here is the list Java Interview Questions which are recently asked in Cognizant company. These questions are included for both Freshers and Experienced professionals.

  1. Explain JDK, JRE and JVM?
  2. Explain public static void main(String args[]) in Java
  3. Why Java is platform independent?
  4. Why Java is not 100% Object-oriented?
  5. What are wrapper classes in Java?
  6. What are constructors in Java?
  7. What is singleton class in Java and how can we make a class singleton?
    8. Free PDF : Get our updated Java Course Content pdf
  8. What is the difference between Array list and vector in Java?
  9. What is the difference between equals() and == in Java?
  10. What are the differences between Heap and Stack Memory in Java?
  11. What is a package in Java? List down various advantages of packages.
  12. Why pointers are not used in Java?
  13. What is JIT compiler in Java?
  14. What are access modifiers in Java?
  15. Define a Java Class.
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TOP MNC's JAVA INTERVIEW QUESTIONS & ANSWERS

Here we listed all Java Interview Questions and Answers which are asked in Top MNCs. Periodically we update this page with recently asked Questions, please do visit our page often and be updated in Java.