Java Programming Practice Test 10

1. Which is the Parent class of annotation class?

Class

Main

Object

Super

2. Which design pattern represents a way to access all the objects in a collection?

Builder pattern

Bridge pattern

Iterator pattern

Facade pattern

3. What does setAutoCommit(false) do?

explicitly commits transaction

does not commit transaction automatically after each query

never commits transaction

commits transaction after each query

4. Which class provides system independent server side implementation?

Socket

Server

ServerSocket

ServerReader

5. Which file is used to define dependency in maven?

dependency.xml

build.xml

version.xml

pom.xml

6. Which of the following is advantage of using PreparedStatement in Java?

Prevents SQL injection

More memory usage

Encourages SQL injection

Slow performance

7. "out" is implicit object of which class?

javax.servlet.jsp.SessionPrinter

javax.servlet.jsp.JspWriter

javax.servlet.jsp.PrintWriter

javax.servlet.jsp.SessionWriter

8. What is the difference between servlets and applets?
i. Servlets execute on Server; Applets execute on browser
ii. Servlets have no GUI; Applet has GUI
iii. Servlets creates static web pages; Applets creates dynamic web pages
iv. Servlets can handle only a single request; Applet can handle multiple requests

i, ii are correct

i, ii, iii, iv are correct

i, iii are correct

i, ii, iii are correct

9. How to deep dive into the execution of a method from a method call?

10. Which of the following is stored at client side?

URL rewriting

Hidden form fields

SSL sessions