mohamed ewis

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18 Posts 8 Threads 0 Cows

since Feb 05, 2006

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Recent posts by mohamed ewis

Question about authentication mechanisms

hi , all

What is true about Java EE authentication mechanisms?

1- If your deployment descriptor correctly declares an authentication type of CLIENT_CERT, your users must have a certificate from an official source before they can use your application.

2 - If your deployment descriptor correctly declares an authentication type of BASIC, the container automatically requests a user name and password whenever a user starts a new session.

3 - If you want your web application to support the widest possible array of browsers, and you want to perform authentication, the best choice of Java EE authentication mechanisms is DIGEST.

4 - To use Java EE FORM authentication, you must declare two HTML files in your deployment descriptor, and you must use a predefined action in the HTML file that handles your user's login.

why answer #4 only is the correct answer
i think answer #1 is also correct
is that true

13 years ago

Web Component Certification (OCEJWCD)

implicit objects question

Which of the following statements are correct? ( choose 2 )
1 - The implicit variable 'session' can be used to store values needed by other servlets or JSPs of the same web application.

2 - The implicit variable 'request' can be used to store values needed by other servlets or jsps across multiple requests.

3 - You can use the implicit variable 'response' to set the content type of the output.

4 - The implicit variable 'out' is same as returned by response.getWriter()

5 - All JSPs have access to 'request', 'response' and 'session' variables.

why choice #4 is not correct
mock exam answers was #1 & # 3

13 years ago

Web Component Certification (OCEJWCD)

about sendRedirect

hi amol ,thanks for reply
i tried the code as you wrote and no exceptions thrown ,
it out NewServlet at /JSPStudy in browser window

13 years ago

Web Component Certification (OCEJWCD)

about sendRedirect

thanks Abinesh for your reply
manuly flush response and still no exception

PrintWriter out = response.getWriter();
try {
out.println("<html>");
out.println("<head>");
out.println("<title>NewServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>NewServlet at "
+ request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
out.flush(); // flush response
response.sendRedirect("http://www.cnn.com");

14 years ago

Web Component Certification (OCEJWCD)

about sendRedirect

sendredirect : i know taht We cannot call this method if the response is committed�that is,if the response header has already been sent to the browser
but when i write it after commiting response no exception thrown ,why

PrintWriter out = response.getWriter();
try {
out.println("<html>");
out.println("<head>");
out.println("<title>NewServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>NewServlet at "
+ request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
response.sendRedirect("http://www.cnn.com");

14 years ago

Web Component Certification (OCEJWCD)

help about unified EL

unified EL represents a union of the expression language offered by JSP 2.0 and the expression language created for JavaServer Faces technology

14 years ago

Web Component Certification (OCEJWCD)

help about unified EL

hi all , i am now preparing for scwcd 5 ,i want to know if the exam ask about EL or unified EL

14 years ago

Web Component Certification (OCEJWCD)

passed scjp with 93

hi
i passed my scjp with 93% thanks for javaranche

what is the next step

16 years ago

Certification Results

string

String s3= new String("lkj");
String s4= new String("lkj");

3 object created

object for s3 , object for s4 and the string "lkj" which created in the string pool

16 years ago

Programmer Certification (OCPJP)

Order of Execution(Interesting)-:)

hi
the order of execuation is

1- static inializers
2- super constractor
3- non static inializers allocated in the memory
4-allocate constracuctors in memory

16 years ago

Programmer Certification (OCPJP)

How Many String Object?

you are right Edisandro

5 string objects in Q1 and 10 string object in Q2

16 years ago

Programmer Certification (OCPJP)

StringBuffer Question.

hi

two stringbuffer object created and one string object

16 years ago

Programmer Certification (OCPJP)

GC Question.

hi Edisandro
you are correct only object created in m method eligible for gc

16 years ago

Programmer Certification (OCPJP)

Question about thread

hi henry

if i create class that extend thread i can throw it as thread parameter
as you give him a runnable object is not true ?

16 years ago

Programmer Certification (OCPJP)

Question about thread

hi
please help answering the following question

What must be true for the RunHandler class so that instances of RunHandler can be used as written
in the code below?

class Test
{
public static void main(String[] args)
{
Thread t = new Thread(new RunHandler());
t.start();
}
}

choose 2 only
(A) RunHandler must implement the java.lang.Runnable interface
(B) RunHandler must extend the thread class
(C) RunHandlermust provide a run method declared as public and returning
(D) RunHandler must provide an init() method

i say a and b correct

16 years ago

Programmer Certification (OCPJP)