Tag: programming languages

Questions Related to programming languages

  1. 1 can only be called with predecleration of complex_num

  2. 1 and 2 are same

  3. 2 can only be called with predecleration of complex_num

  4. 1 is reference to a subroutine


Correct Option: C
  1. Attributes of ServletContext

  2. Enterprise Java Beans

  3. Attributes of HttpSession

  4. Database


Correct Option: A
  1. session

  2. page

  3. application

  4. None of the above


Correct Option: B
  1. Http Redirects

  2. Hidden Variables

  3. Cookies

  4. Rewritten URLs

  5. Using HttpSession Interface


Correct Option: A
  1. True

  2. False


Correct Option: A
Explanation:

To solve this question, the user needs to know the basic concept of thread safety in Java and how it applies to local variables in methods like service(), doPost() and doGet().

The answer to this question is:

A. True

Explanation:

Local variables declared within a method are thread-safe because they are confined to the method and are not shared between threads. Each thread, when executing the method, will have its own copy of the local variables declared within the method. As a result, other threads cannot modify the values of these local variables, ensuring thread safety.

Therefore, the correct answer is option A, true.