Is null keyword in java?
What is the difference between this() and super() in java?
What is anonymous class?
diff b/w sleep(1000) and wait(1000)?
How to make object serializable in java?
Superclass of exception
What is the public method modifier?
what is template design pattern?
What is java and why do we need it? Explain
Why is logger singleton?
Write a program to print all permutations of string?
How does thread synchronization occurs inside a monitor? What levels of synchronization can you apply?
What is use of static in java?