JAVA CONCEPTS

Important Java Mcq 1

Which component is responsible to run the Java program?

a) JDK

b) JVM

c) JRE

d) SDK

Answer:

b) JVM

Explanation:

The JVM is the cornerstone of the Java programming language. It is responsible for Java’s cross-platform portability and the small size of its compiled code. The Solaris JVM is used to execute Java applications.

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