What is an inner class in java?
Given: 11. public static void main(String[] args) { 12. Integer i = uew Integer(1) + new Integer(2); 13. switch(i) { 14. case 3: System.out.println(”three”); break; 15. default: System.out.println(”other”); break; 16. } 17. } ‘What is the result? 1 three 2 other 3 An exception is thrown at runtime. 4 Compilation fails because of an error on line 12.
Why sleep()is in Thread and wait() in Object class? Why can't I have both in one class or vice versa?
Highest level event class of the event-delegation model?
Is null a string?
Explain final, finalize() and finally?
List down the methods and interfaces of collection class in java.
why the primitive data type have classes?
How do you implement polymorphism in our day to day life?
how to one war file class to another war file class?
What are desktop procedures?
Make a data structure and implement an algorithm to print all the files in a directory. (The root directory can have sub-directories too.)
What is the meaning of variable in research?