Can we define private and protected modifiers for variables in interfaces?
Responda
Yes
No
Questão 3
Questão
What is Externalizable?
Responda
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)
Questão 4
Questão
What modifiers are allowed for methods in an Interface?
Responda
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.
Questão 5
Questão
What are the JSP tag?
Responda
Directives
Declarations
Scriplets
Expressions
Directives
Declarations
Scriplets
Expressions
Questão 6
Questão
What are JSP Directives?
Responda
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” %>
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)
Questão 8
Questão
What are the components of the J2EE application?
Responda
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
ActionServlet, RequestProcessor and Action classes are the components of Controller?
Responda
Yes
No
Questão 12
Questão
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
Responda
True
False
Questão 13
Questão
Is Singleton default scope in Spring?
Responda
True
False
Questão 14
Questão
How many types of memory areas are allocated by JVM?
Responda
3
5
4
7
Questão 15
Questão
Can we execute a program without main() method? And Can we overload main() method?
Responda
Yes
No
MayBe
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