JAVA CONCEPTS

Important Java Mcq 1

Which of these is not a fundamental feature of OOP?

a) Encapsulation

b) Inheritance

c) Instantiation

d) Polymorphism

Answer:

c) Instantiation

Explanation:

OOP stands for Object-Oriented Programming. Procedural programming is about writing procedures or methods that perform operations on the data, while object-oriented programming is about creating objects that contain both data and methods. inheritance, abstraction, polymorphism, etc. Instantiation simply refers to the creation of an instance of a class. It is not a fundamental feature of OOP.

Which keyword is used to import a package from the Java API library?

a) lib b) package c) getlib d) import Answer d) import

Which of the following statements is incorrect with respect to overriding?

a. When overriding a method, the names and type signatures of the override method must be the same as the virtual method that is being

Which of the following is an implicit object?

a. Vector b. ln c. Response d. Request Answer: d. Request Explanation: The JSP request is an implicit object of type HttpServletRequest. It can be used

What is the output of the below Java program with constructors?

a) Count=0 b) Count=10 c) Compile error d) None of the above Answer c) Compile error