Zusammenfassung der Ressource
Frage 1
Frage
Can an Interface have an inner class?
Frage 2
Frage
Can we define private and protected modifiers for variables in interfaces?
Frage 3
Frage
What is Externalizable?
Antworten
-
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)
Frage 4
Frage
What modifiers are allowed for methods in an Interface?
Antworten
-
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.
Frage 5
Frage
What are the JSP tag?
Frage 6
Frage
What are JSP Directives?
Antworten
-
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” %>
Frage 7
Frage
What are the phases of the servlet life cycle?
Antworten
-
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)
-
The life cycle of a servlet consists of the following phases:
Servlet class loading
Servlet instantiation
Removal from service (call the destroy method)
-
The life cycle of a servlet consists of the following phases:
Servlet class loading
the init method
Request handling (call the service method)
Removal from service (call the destroy method)
Frage 8
Frage
What are the components of the J2EE application?
Antworten
-
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
Frage 9
Frage
Servlet is pure java object or not?
Frage 10
Frage
What are the benefits of ORM?
Antworten
-
Productivity
Maintainability
Performance
Vendor independence
-
Maintainability
Performance
Vendor independence
-
Productivity
Maintainability
Performance
Frage 11
Frage
ActionServlet, RequestProcessor and Action classes are the components of Controller?
Frage 12
Frage
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
Frage 13
Frage
Is Singleton default scope in Spring?
Frage 14
Frage
How many types of memory areas are allocated by JVM?
Frage 15
Frage
Can we execute a program without main() method? And Can we overload main() method?