Programming in JAVA QUIZ

Java program processing always starts with main() method

• YES

• NO

Java supports both Primitive & Non-Primitive(User Defined) datatypes. Which one of the following is not a primitive datatype?

• byte

• short

• long

• class

Which of these are Access Modifiers in java?

• default

• public

• protected

• all of these

Can Abstract classes instantiated?

• yes

• no

What do you mean by nameless objects?

• 1. An object created by using the new keyword.

• 1. An object of a superclass created in the subclass.

• 1. An object without having any name but having a reference.

• 1. An object that has no reference.

Which of the following is an immediate subclass of the Panel class?

• 1. Applet class

• 1. Window class

• 1. Frame class

• 1. Dialog class

Which option is false about the final keyword?

• 1. A final method cannot be overridden in its subclasses.

• 1. A final class cannot be extended.

• 1. A final class cannot extend other classes.

• 1. A final method can be inherited.

How many threads can be executed at a time?

• 1. Only one thread

• 1. Multiple threads

• 1. Only main (main() method) thread

• 1. Two threads

What happens when the main() isn't declared as static?

• No error

• throws a run time error that reads "NoSuchMethodError."

• throws compile time error

• ambiguity error

Can we overload a static method?

• No

• yes