Page #485 (Chapter Summary)

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Review Questions

Sections 35.1 “35.3

35.1	What is the file name extension of a JavaServer page? How is a JSP page processed ?
35.2	Where should a JSP file be placed for it to run from Tomcat?
35.3	You can display an HTML file (e.g., c:\test.html ) by typing the complete file name in the Address field of Internet Explorer. Why can't you display a JSP file by simply typing the file name?

Section 35.4 JSP Scripting Constructs

35.4	What are a JSP expression, a JSP scriptlet, and a JSP declaration? How do you write these constructs in JSP?
35.5	Find three syntax errors in the following JSP code: <%! int k %> <% for ( int j = 1 ; j <= 9 ; j++) %> <%= j; %> <br />
35.6	In the following JSP, which variables are instance variables and which are local variables when it is translated in the servlet? <%! int k; %> <%! int i; %> <% for ( int j = 1 ; j <= 9 ; j++) k += 1 ; %> <%= k ><br /> <%= i ><br /> <%= getTime() ><br/> <% private long getTime() { long time = System.currentTimeMillis(); return time; } %>

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Section 35.5 Predefined Variables

35.7	Describe the predefined variables in JSP.
35.8	What is wrong if the JSP scriptlet <% in line 7 in ComputeLoan.jsp (Listing 35.3) is replaced by JSP declaration <%! ?
35.9	Can you use predefined variables (e.g., request , response , out ) in JSP declarations?

Section 35.6 JSP Directives

35.10	Describe the JSP directives and attributes for the page directive.
35.11	If a class does not have a package statement, can you import it?
35.12	If you use a custom class from a JSP, where should the class be placed?

Section 35.7 Using JavaBeans in JSP

35.13	You can create an object in a JSP scriptlet. What is the difference between an object created using the new operator and a bean created using the <jsp:useBean ... > tag?
35.14	What is the scope attribute for? Describe four scope attributes.
35.15	Describe how a <jsp:useBean ... > statement is processed by the JSP engine.

Sections 35.8 “35.10

35.16	How do you associate bean properties with input parameters?
35.17	How do you write a statement to forward requests to another JSP page?