What is a boolean flag in java?
Explain the difference between protected and default access.
Why are variables important in research?
write a simple program inheritance?
how to handle exceptions in ejb?
How HashMap implemented in java? how it internally works when values are added or searched from hashMap?What is the difference betweenthe implementation of hashmap and Linked Hashmap?
What is the difference between reader/writer and inputstream/output stream?
What is callable java?
What is the most important feature of java? What is an interface?
What are register variables what are the advantages?
What is the difference between java applets and applications?
What is string pool?
Explain what access modifiers can be used for methods?