Can a class have 2 constructors?
Why is string buffer better than string ?
Can an interface extands a class?
What is the difference between Integer and int?
Is arraylist an object in java?
Explain about the performance aspects of core java?
What is basic concept of static in java ?
What is a native method?
Should a main method be compulsorily declared in all java classes?
what do you understand by synchronization? : Java thread
what is the volatile modifier for? : Java thread
If an application has multiple classes in it, is it okay to have a main method in more than one class?
When does a class need a virtual destructor?