Jython MCQs and Answers with Explanation | Jython Quiz

Jython MCQs and Answers with Explanation: Are you tired of searching multiple websites for Jython quiz questions and answers to prepare for your interview? Well, worry not! This article contains Jython multiple choice questions and a brief introduction to the Jython concept. After learning about the concept, try to attempt the Jython MCQs and answers to gauge your level of understanding and identify areas for improvement. Jython is a high-level programming language that implements Python on the Java Virtual Machine (JVM). It seamlessly integrates with Java, enabling developers to write Python code that interacts with Java classes and libraries. Jython is a popular choice among developers who want to leverage the simplicity and elegance of Python in a Java-based environment.

Jython MCQs and Answers

Jython is an implementation of the Python programming language that runs on the Java Virtual Machine (JVM). It is designed to provide an easy way for Python developers to interact with Java code, and vice versa. Jython allows Python code to be executed on any system with a JVM installed, making it a versatile tool for developers. In this article, we have provided a set of Jython Quiz in Questions and answers format, to help you better understand this powerful programming language.

Jython Multiple Choice Questions

Top 25 Jython MCQ Questions | Jython Quiz

1. What is the output of the following code snippet in Jython?

python
x = [1, 2, 3, 4]
for i in x:
if i % 2 == 0:
continue
print(i)

a) 1 2 3 4
b) 1 3
c) 2 4
d) Error

Answer: B 1 3

Explanation: In Jython, the continue statement is used to skip the current iteration of a loop and move on to the next iteration. In the code snippet, the for loop iterates over the list x, and for each element i in the list, the if statement checks if i is even. If i is even, the continue statement is executed, and the current iteration is skipped. If i is odd, the print statement is executed, and i is printed. Therefore, the output of the code snippet is 1 3.

2. What is Jython?

a) A programming language that combines Java and Python
b) A programming language that combines JavaScript and Python
c) A programming language that combines Jupyter Notebook and Python
d) A programming language that combines JIRA and Python

Answer: A A programming language that combines Java and Python

Explanation: Jython is a high-level programming language that combines the simplicity and power of Python with the seamless integration of Java. It allows Python code to run on any Java platform.

3. Which of the following is true about Jython’s syntax?

a) Jython syntax is the same as Python syntax.
b) Jython syntax is the same as Java syntax.
c) Jython syntax is a mix of Python and Java syntax.
d) Jython syntax is completely different from Python and Java syntax.

Answer: A Jython syntax is the same as Python syntax.

Explanation: Jython is an implementation of Python, so its syntax is the same as Python syntax.

4. What is the file extension for a Jython program?

a) .py
b) .java
c) .jy
d) .jsp

Answer: C .jy

Explanation: Jython programs have the file extension .jy, just like Python programs have the file extension .py.

5. Which of the following is true about Jython’s ability to call Java code?

a) Jython cannot call Java code.
b) Jython can only call Java code that has been specifically written for Jython.
c) Jython can call any Java code.
d) Jython can only call Java code that has been compiled to bytecode.

Answer: C Jython can call any Java code.

Explanation: Jython is integrated with the Java platform and can call any Java code without any special configuration.

6. Which of the following is the correct way to import a module called “mymodule” in Jython?

a) import mymodule
b) include mymodule
c) require mymodule
d) load mymodule

Answer: A import mymodule

Explanation: In Jython, a module can be imported using the import keyword, followed by the module name.

7. Which of the following is true about Jython’s use of threads?

a) Jython uses the same threading model as Python.
b) Jython uses the same threading model as Java
c) Jython does not support threading.
d) Jython uses a completely different threading model than Python or Java.

Answer: B Jython uses the same threading model as Java.

Explanation:  Since Jython is integrated with the Java platform, it uses the same threading model as Java, which includes support for both user and system threads.

8. Which of the following is NOT a data type in Jython?

a) int
b) float
c) complex
d) stringlist

Answer: D stringlist

Explanation: Jython has the same data types as Python, including int, float, complex, and string. However, there is no data type called stringlist in Jython.

9. Which of the following is true about Jython’s use of the Java Virtual Machine (JVM)?

a) Jython uses a different virtual machine than the JVM.
b) Jython uses the JVM as its virtual machine.
c) Jython uses a virtual machine that is a combination of the JVM and the Python interpreter.
d) Jython does not use a virtual machine.

Answer: B Jython uses the JVM as its virtual machine.

Explanation:  Jython is built on top of the JVM, and uses it as its virtual machine.

10. What is the latest version of Jython as of 2023?

a) Jython 2.7.4
b) Jython 3.0
c) Jython 2.7.3
d) Jython 2.5.2

Answer: A Jython 2.7.4 is the latest version of Jython as of 2023.

Explanation: Jython 2.7.4 is the latest version of Jython as of 2023.

11. Which of the following is true about Jython’s support for metaprogramming?

a) Jython has no support for metaprogramming.
b) Jython supports metaprogramming, but only to a limited extent.
c) Jython has full support for metaprogramming.
d) Jython has better support for metaprogramming than Python.

Answer: C Jython has full support for metaprogramming.

Explanation:  Jython has full support for metaprogramming, including the ability to create and modify classes and objects dynamically.

12. Which of the following is a valid Jython comment?

a) // This is a comment
b) # This is a comment
c) /* This is a comment */
d) <!– This is a comment –>

Answer: B # This is a comment

Explanation: In Jython, comments start with the # symbol.

13. Which of the following is not a feature of Jython?

a) Full integration with Java libraries
b) Dynamic compilation
c) Garbage collection
d) Support for multiple inheritance

Answer: D Support for multiple inheritance is not a feature of Jython.

Explanation: Jython supports single inheritance like Python.

14. Which of the following is true about Jython’s support for networking?

a) Jython does not support networking.
b) Jython supports networking, but only to a limited extent.
c) Jython has full support for networking.
d) Jython has better support for networking than Python.

Answer: C Jython has full support for networking.

Explanation: Jython has full support for networking, including support for sockets, HTTP clients and servers, and other networking protocols.

15. What is the syntax for commenting in Jython?

a) // This is a comment
b) # This is a comment
c) /* This is a comment */
d) // This is a comment //

Answer: B # This is a comment.

Explanation: In Jython, single-line comments are denoted by the hash (#) symbol.

16. Which of the following is true about Jython’s performance compared to CPython?

a) Jython is generally faster than CPython.
b) Jython is generally slower than CPython.
c) Jython’s performance is about the same as CPython’s.
d) Jython’s performance depends on the specific use case.

Answer: B Jython is generally slower than CPython. Due to Jython’s integration with the JVM, it can suffer from slower startup times and lower performance compared to CPython in certain cases.

17. Which of the following is a valid Jython variable name?

a) my_var
b) 1_var
c) my-var
d) my var

Answer: A my_var is a valid Jython variable name.

Explanation: Variable names in Jython can only contain letters, numbers, and underscores (_), and cannot start with a number.

18. Which of the following is true about Jython’s compatibility with Java code?

a) Jython can run any Java code without modification.
b) Jython can run most Java code, but some modifications may be necessary.
c) Jython can only run a subset of Java code.
d) Jython cannot run Java code at all.

Answer: B Jython can run most Java code, but some modifications may be necessary.

Explanation: While Jython aims to be fully compatible with Java, there may be some differences in behavior that require code modifications, especially when it comes to working with Java libraries that make use of native code or platform-specific features.

19. Which of the following is NOT a valid Jython variable name?

a) _variable
b) 123variable
c) variable_123
d) variable123

Answer: B 123variable

Explanation: Variable names in Jython must start with a letter or an underscore.

20. Which of the following is true about Jython’s memory management?

a) Jython uses reference counting for memory management.
b) Jython uses garbage collection for memory management.
c) Jython does not have any memory management features.
d) Jython’s memory management depends on the underlying JVM.

Answer: D Jython’s memory management depends on the underlying JVM.

Explanation: Since Jython runs on the JVM, it inherits the JVM’s memory management features, including garbage collection.

21. Which of the following is not a built-in Jython data type?

a) List
b) Tuple
c) Set
d) Matrix

Answer: D Matrix is not a built-in Jython data type.

Explanation: However, Jython can work with matrices using external libraries like NumPy.

22. Which of the following is a valid way to define a Jython function?

a) def my_func
b) def my_func():
c) def my_func():
d) function my_func():

Answer: C def my_func(): pass.

Explanation:  The correct syntax for defining a Jython function is using the ‘def’ keyword, followed by the function name and parentheses, and a colon. The function body should be indented and can be empty (using the’ pass’ keyword) or contain code.

23. Which of the following is a valid Jython list method?

a) push()
b) remove()
c) clear()
d) join()

Answer: B remove().

Explanation:  The remove() method is a valid Jython list method that removes the first occurrence of a given value from the list.

24. Which of the following is a valid Jython string method to remove leading and trailing whitespace?

a) strip()
b) trim()
c) remove()
d) clear()

Answer: A strip().

Explanation: The ‘strip()’ method is a valid Jython string method that removes leading and trailing whitespace from a string.

25. Which of the following is a valid Jython comparison operator?

a) &
b) %
c) /
d) <

Answer: D <.

Explanation:  The < operator is a valid Jython comparison operator that checks if the left operand is less than the right operand.

The Jython Multiple Choice Questions and answers related to Jython provide a useful resource for anyone looking to learn more about this versatile programming language and its integration with Java. By testing your knowledge and understanding of Jython, you can become a more proficient developer in both Python and Java. Finally, we recommend that readers follow Freshersnow to stay updated on technical quizzes and other related topics.