Advance Java MCQ Questions & Answers

1. Annotation added as an input parameter to the handler method.
   Ans : @pathvariable
2. _____ Drivers are used to manipulate data from database with the help of java platform.
   Ans : JDBC
3. POJO in Java stands for ___
   Ans : Plain Old Java Object
4. Autowiring by property name. Spring container looks at the properties of the beans on which autowire attribute is set to ___in the XML configuration file
   Ans : byName
   
   
5. Which advice is executed once a joint point finishes?
   Ans : @after
6. The __ object is an instance of a javax.servlet.http.HttpServletRequest object.
   Ans : Request
7. ______ indicates if any component orservice will or will not participate in a transaction and how will it behave if the calling component/service already has or does not have a transaction created already.
   Ans : Transaction propagation
8. _____is one of the major components of the Spring Framework.
   Ans : Aspect-oriented programming (AOP)
   
   
9. REST stands for ________.
   Ans : Representational State Transfer
10. <%– A JSP –%> is the Syntax of JSP ______.
    Ans : comment
11. Spring Boot does not generate code and there is absolutely no requirement for .
    Ans : XML configuration.
12. ____ is just extension of the already existing and expansive Spring frameworks, but it has some specific features that make the application easier for working within the developer ecosystem.
    Ans : Spring Boot
    
    
13. Spring is the most popular application development framework for…
    Ans : Enterprise Java.
14. JDBC stands for ____
    Ans : Java Database Connectivity
15. The _____ is known as the wildcard in generic programming .
    Ans : ?
16. The Collection Interface also contains methods that performs operations on entire collections which are also called as ____operations.
    Ans : Bulk
    
17. Spring JDBC provides a simple API on
    Ans : Top of JDBC
18. Spring MVC is a specific Spring-based web framework in a .
    Ans : Traditional Sense
19. At what line will there be a compilation error?
    public class Generics {
    public static void main(String[] args) {
    B b = new B(); /* LINE A */
    C c = b.process(new C()); /* LINE B */
    B<C> b2 = new B<C>(); /* LINE C */
    C c2 = b2.process(new C()); /* LINE D */
    }
    }
    interface A {
    int count();
    void show();
    }
    class B<T extends A> {
    T process(T t) {
    t.count();
    t.show();
    return t;
    }
    }
    class C implements A {
    public int count() { return 25; }
    public void show() { System.out.print(“Class C”); }
    }
    Ans . Line C

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Advance Java MCQ Questions & Answers

1. The Java______ specification defines an application programming interface for communication between the Web server and the application program.
   Answer : Servlet
2. _______method used to append all of the elements from the mentioned collection to the existing set.
   Answer : addAll()
3. Which tag is used to set a value of a JavaBean?
   Answer : <c:set>*
4. Which of the following could be written with little knowledge of java?
   Answer : Java Server Pages
5. ………………… is the first phase of the servlet life cycle.
   Answer : Initialization
   
   
   
6. What is the return type of lambda expression?
   Answer : Function
7. Which one of the following is correct for directive in JSP?
   Answer : <%@directive%>
8. Which of the following is a business component in J2EE?
   Answer : Enterprise Java Beans (EJB)
9. Which of these data type cannot be type parameterized?
   Answer – Array
10. How constructor can be used for a servlet?
    Answer – Initialization and a Constructor function.
    
    
    
11. Java + ___ = JSP.
    Answer :  HTML
12. Which of the following is not a kind of exception that is thrown by JDBC method?
    Answer : DataRounding
13. What is built on top of socket programming?
    Answer : RMI
    
14. Which attribute uniquely identification element?
    Answer : ID
15. Which of the following is the main drawback of CGI?
    Answer : Scalability
    
    
    
16. Among the following options choose the one which shows the advantage of using the JDBC connection pool.
    Answer : Better Performance
17. Which of the following modifiers can be applied to a constructor?
    Answer : Private
18. __ tag is used to define or you can say declare methods and variables in JSP.
    Answer : Declaration Tag
19. Each type parameter section contains one or more type parameters separated by ___.
    Answer : commas
20. Why should we use Generic?
    Answer : All of these
21. Syntax of LAMBDA Expression is (Parameters-list)(Expression body)
    Answer : ->
    
    
    

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