What is the life cycle of an Applet ?
What is hashset in java?
Is null an object in java?
What is a serializable interface?
What is the difference between this() and super()?
What is a variable and constant?
If a variable is declared as private, where may the variable be accessed?
What is method overloading with type promotion?
Explain the difference between treeset and treemap in java?
By what default value is an object reference declared as an instance variable?
Does garbage collection guarantee that a program will not run out of memory?
Can a source file contain more than one class declaration?
What do you understand by Header linked List?