Question

Web programming questions (please help if you can) (Java)

1. In which of the following types of JSP elements, the implicit objects cannot be used?

(a) scriplets (b) declarations (c) expressions

2. All the JSP implicit objects are created automatically by the server without any request from the programmers.

(a) true (b) false

3. Which of the following scopes is used for the members declared inside the JSP declarations?

(a) class (b) method

4. When is the code inside a JSP declaration copied into another file?

(a) at translation time (b) at compile time (c) at runtime

Answer 1

1.

The correct option is (b) declarations.

Explanation:

• Since, the object of JSP are local for the service methods. And they are added to the containers while translating the page to the servlet.
• The code of the declaration move outside the method of service and is being used for the creation of the class level variables and the methods.
• Hence, the implicit objects can’t be used for declarations.

2.

The correct option is (a) true.

Explanation:

• When the JSP phase is translated into the servlet, the implicit objects are automatically being created.
• Hence, the correct option is true.

3.

The correct option is (a) class

Explanation:

• The tag of declaration is the piece of Java which consists of variables, methods and classes.
• Whenever the methods or the variables declared inside this declaration tag, it seems that they are declared inside the servlet but output the method of service,
• Thus, the scope used for the members declared inside the JSP declaration is class.

4.

The correct option is (a) at translation time .

Explanation:

• At the phase of translation, with the use of include directive, the file is inserted at the time when the JSP page is being translated to the servlet.
• At the time when the page is being requested, the file is inserted.
• Hence, the correct option is translation time.