JAVA CONCEPTS

Important Java Mcq 1

Which are the examples of an application server?

a. Apache

b. JBoss

c. WebLogic

d. Both c and b.

Answer:

d. Both c and b.

Explanation

JBoss and WebLogic are examples of application servers. The JBoss application server is an open-source platform, developed by Red Hat, and used for implementing Java applications and a wide variety of other software applications. WebLogic server is a unified and extensible platform for developing, deploying, and running enterprise applications, such as Java, for on-premises and in the cloud.

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