Term
<% String s = s1 %>
<%! String s1 = "hello"; %>
Will this compile? |
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Definition
No because since scriptlets become
part of the _jspService () , the variables declared become local variables, so order is important. |
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Term
<%! int i; !%> (glob)
<% int j; %> (loc)
The value of i is <%= i++ %> 1
The value of j is <%= j++ %> 2
Which line will cause an error and why? |
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Definition
line 2 because j is not initailized,
since instance variables are intilized by default,
while local variables like in line2
are not. |
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Term
<%! is an example of
1. delcaration
2. scriptlet
3. expression |
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Definition
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Term
<% is an example of
1. delcaration
2. scriptlet
3. expression |
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Definition
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Term
<%= is an example of
1. delcaration
2. scriptlet
3. expression |
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Definition
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Term
Is this a valid JSP construct
<%=myObj.m1(); %> |
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Definition
| INvalid because the sign = makes it a JSP Expression, and they should never be terminated with a semicolon. |
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Term
Is this valid?
<% int x= 4, y = 5; %>
<%=x=y%> |
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Definition
Yes it is valid.
translated to out.print(x=y) |
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Term
What is wrong with the following?
<%@ page language='java' %>
<% int x= 0;
int incr() { return ++x; }
%> |
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Definition
| Can't define methods in a scriptlet. Upon translation the _jspService will had the method inside _jspService() which is illegal |
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Term
1. <% int x = 3; %>
2. <%! int x = 5; %>
Which declaration is local to the class? |
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Definition
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Term
| The implicit variable available to JSP page that belongs to interfac javax.servletServletContext is.... |
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Definition
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Term
| The implicit variable available to JSP page that belongs to interface javax.servlet.http.HttpSession.... |
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Definition
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Term
| The implicit variable available to JSP page that belongs to interface javax.servlet.http.HttpServletRequest.... |
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Definition
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Term
| The implicit variable available to JSP page that belongs to interface javax.servlet.http.HttpServletResponse.... |
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Definition
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Term
The implicit variable available to JSP page that belongs to class
javax.servlet.jsp.JspWriter.... |
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Definition
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Term
The implicit variable available to JSP page that belongs to class
java.lang.Object |
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Definition
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Term
The implicit variable available to JSP page that belongs to class
javax.servlet.jsp.PageContext |
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Definition
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Term
The implicit variable available to JSP page that belongs to class
java.lang.Throwable.... |
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Definition
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Term
The implicit variable available to JSP page that belongs to interface
javax.servlet.ServletConfig.... |
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Definition
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Term
| ________ pageContext = null; |
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Definition
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Term
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Definition
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Term
| _______ application = null; |
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Definition
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Term
| _______________ config = null; |
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Definition
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Term
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Definition
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Term
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Definition
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Term
application variable
String path = application.getRealPath("")
same as
String path =__________.getRealPath |
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Definition
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Term
<%@page session ="false" %>
Session ID = <%session.getId()%>
compile? |
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Definition
| no because session = false indicates that the current page will not participate in an HTTP session, so the implicit variable session is unavailable. |
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Term
String remoteAddr = ____getRemoteAddr();
Request or Response? |
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Definition
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Term
__.setContentType("text/html...");
Response or Request? |
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Definition
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Term
Which will compile?
<%= page.getServletInfo() %>
<% this.getServletInfo() %> |
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Definition
<% this.getServletInfo() %>
because page is a class of java.lang.Object so it cannot be used to directly call the servlet methods. |
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Term
The four scopes of object in JSP pages
are
1. Application
2. Session
3. Request
4. __________ |
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Definition
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Term
| Objects in which scope are accessible to all of the web applications of a servlet container? |
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Definition
There is no scope that can
share objects across mutliple web applications. To do that, we have to either use
SErvlet Context.getContext() or use an external database. |
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Term
What is wrong with the above? |
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Definition
Expression and Declaration
should be lower case.
(case sensitive) |
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Term
Static includsion, the contnets of another file are included we use include.
How to write this JSP style? |
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Definition
| <%@ include file="link" /> |
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Term
| In dynamic includsion, when the JSP page is requested, it sends a request to another object, and the output from that object is included in the requested JSP page. We use which 2 actions? |
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Definition
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Term
Using jsp:forward
1. RequestDispatcher rd = request.getRequestDispatcher('o.jsp");
rd.forward(request, response)
HOw can we write this another way? |
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Definition
1. pageContext.forward('"o.jsp");
2. |
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