testpassport

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 1.You are creating a JSP page to display a collection of data. This data can be displayed in several
different ways so the architect on your project decided to create a generic servlet that generates a
commadelimited
string so that various pages can render the data in different ways. This servlet takes on
request parameter: objectID.
Assume that this servlet is mapped to the URL pattern: /WEBINF/
data.
In the JSP you are creating, you need to split this string into its elements separated by commas and
generate an HTML <ul> list from the data.
Which JSTL code snippet will accomplish this goal?
A. <c:import varReader='dataString' url='/WEBINF/
data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
B. <c:import varReader='dataString' url='/WEBINF/
data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
C. <c:import var='dataString' url='/WEBINF/
data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul><c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
D. <c:import var='dataString' url='/WEBINF/
data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
Answer:D
2.You web application uses a lot of Java enumerated types in the domain model of the application. Built
into each enum type is a method, getDisplay(), which returns a localized, useroriented
string. There are
many uses for presenting enums within the web
application,
so your manager has asked you to create a custom tag that iterates over the set of enum values and
processes
the body of the tag once for each value; setting the value into a pagescoped
attribute called, enumValue.
Here is an example of how this tag is used:
10: <select name='season'>
11: <t:everyEnum type='com.example.Season'>
12: <option value='${enumValue}'>${enumValue.display}</option>
13: </t:everyEnum>
14: </select>
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You have decided to use the Simple tag model to create this tag handler.
Which tag handler method will
accomplish this goal?
A. public void doTag() throw JspException {
try {
for ( Enum value : getEnumValues() ) {
pageContext.setAttribute("enumValue", value);
getJspBody().invoke(getOut());
}
} (Exception e) { throw new JspException(e); }
}
B. public void doTag() throw JspException {
try {
for ( Enum value : getEnumValues() ) {
getJspContext().setAttribute("enumValue", value);
getJspBody().invoke(null);
}
} (Exception e) { throw new JspException(e); }
}
C. public void doTag() throw JspException {
try {
for ( Enum value : getEnumValues() ) {
getJspContext().setAttribute("enumValue", value);
getJspBody().invoke(getJspContext().getWriter());
}
} (Exception e) { throw new JspException(e); }
}
D. public void doTag() throw JspException {

try {
for ( Enum value : getEnumValues() ) {
pageContext.setAttribute("enumValue", value);
getJspBody().invoke(getJspContext().getWriter());
}
} (Exception e) { throw new JspException(e); }
}
Answer:B