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Can an Interface have an inner class?
Yes
No
Can we define private and protected modifiers for variables in interfaces?
What is Externalizable?
Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has two methods, writeExternal(ObjectOuput out) and readExternal(ObjectInput in)
Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has One methods, writeExternal(ObjectOuput out).
Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has One methods readExternal(ObjectInput in)
What modifiers are allowed for methods in an Interface?
Only abstract modifiers are allowed for methods in interfaces.
Only public and abstract modifiers are allowed for methods in interfaces.
Only public modifiers are allowed for methods in interfaces.
What are the JSP tag?
Directives Declarations
Scriplets Expressions
Directives Declarations Scriplets Expressions
What are JSP Directives?
page Directives <%@page language=”java” %> include Directives: <%@ include file=”/header.jsp” %>
taglib Directives <%@ taglib uri=”tlds/taglib.tld” prefix=”html” %> include Directives: <%@ include file=”/header.jsp” %>
page Directives <%@page language=”java” %> taglib Directives <%@ taglib uri=”tlds/taglib.tld” prefix=”html” %>
1. page Directives <%@page language=”java” %> 2. include Directives: <%@ include file=”/header.jsp” %> 3. taglib Directives <%@ taglib uri=”tlds/taglib.tld” prefix=”html” %>
What are the phases of the servlet life cycle?
The life cycle of a servlet consists of the following phases:
Servlet class loading Servlet instantiation the init method Request handling (call the service method) Removal from service (call the destroy method)
Servlet class loading Servlet instantiation Removal from service (call the destroy method)
Servlet class loading the init method Request handling (call the service method) Removal from service (call the destroy method)
What are the components of the J2EE application?
Client Components (application clients and applets) Web Components (JavaServer Pages and Java Servlets) Business Components (Enterprise JavaBeans) Resource Adapter Components
Web Components (JavaServer Pages and Java Servlets) Business Components (Enterprise JavaBeans) Resource Adapter Components
Client Components (application clients and applets) Web Components (JavaServer Pages and Java Servlets) Business Components (Enterprise JavaBeans)
Client Components (application clients and applets) Web Components (JavaServer Pages and Java Servlets) Resource Adapter Components
Servlet is pure java object or not?
What are the benefits of ORM?
Productivity Maintainability Performance Vendor independence
Maintainability Performance Vendor independence
Productivity Maintainability Performance
ActionServlet, RequestProcessor and Action classes are the components of Controller?
There are seven core modules in spring: The Core container module O/R mapping module (Object/Relational) DAO module Application context module Aspect Oriented Programming Web module MVC module
Is Singleton default scope in Spring?
How many types of memory areas are allocated by JVM?
3
5
4
7
Can we execute a program without main() method? And Can we overload main() method?
MayBe
