Why object class is super class for every class in java?
Explain about Superclass and Subclass?
What is method with example?
diffrence b\w println() and printf()
Define max and min heap, also the search time of heap.
Which java ide is used the most?
What is java lang string?
what is difference between Interface and abstract class
Explain the importance of throwable class and its methods?
What is multiple inheritance & can we implement it in java?
Can we place the any object to key attribute of HashMap<key,value>?
What is the use of static methods?
Explain all java features with real time examples