JAVA CONCEPTS

Important Java Mcq 1

Given the following class definition which of the following are NOT considered part of the class’s public interface?

Public class motorcycle{
    Public static final int WHEEL_COUNT = 2;
    Private int rpmRating;
    Public void updatePrice(double increase){..}
    Private String designCode{..}
  }

a. rpmRating and designCode

b. WHEEL_COUNT and designCode

c. WHEEL_COUNT and updatePrice

d. updatePrice and designCode

Answer:

c. WHEEL_COUNT and updatePrice

Explanation

WHEEL_COUNT and updatePrice are not considered as a part of the public’s Class interface.

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