What are wrapper classes in java?
What do you mean by the term transient?
In how many ways we can create threads in java?
What is use of map in java?
define polymorphism in java
what are the differences between final,finally,finalize methods?
Why can't you declare a class as protected?
Can we declare a class as abstract without having any abstract method?
Is empty set an element of empty set?
Difference between abstract and concrete class ?
Explain the importance of join() method in thread class?
What purpose do the keywords final, finally, and finalize fulfill?
How to override equals() and hashCode() method in java?