🧪 Apache Groovy MCQ Quiz Hub

1. What is the limitation of Groovy?
Groovy can be slower
Groovy might need lots of memory
Groovy start up time requires improvement
All of the above

2. You write a web application with groovlets. You need to get parameter of the request with name 'age' in your script. What is the best way to do this?
def age = params.age ?: 0
def age = params.age ? params.age : 0
def age = params.name == 'age' ? params.age : "not found"
def age = params.getAge

3. How Groovy string is expressed?
It is surrounded by double quotes, for regular strings it uses single quotes
It may contain Groovy Expressions noted in ${}
Square bracket syntax may be applied like charAt(i)
All of these

4. How can we build AST (Abstract Syntax Trees) in Groovy from string?
Strings
Code
From DSL like specification
All of the above

5. Explain GroovyDoc comment?
Type definitions (classes, interfaces, enums, annotations)
Fields and properties definitions
Methods definitions
All the above

6. . Why Use Groovy?
For Java programmers it provides familiar syntax
It has a rich stock of Java Libraries
It easily integrate with your existing infrastructure like Servlet Containers, App Servers, Loads of databases with JDBC drivers
All the above

7. What are Bitwise Operators in Groovy?
bitwise and"
I : bitwise or"
A : bitwise xor"
~ : bitwise negation

8. You write a web application and build it by the Gradle build tool. When you see all Gradle tasks, there isn't task 'war'. What a problem may it be?
You forget to set plugin 'jar' in build.xml
You forget to set plugin 'war' in build.gradle
you forget to set plugin 'web' in build.gradle
You forget to set plugin 'war' in web.xml

9. Mention the features offered by groovy JDK.
The collection of literals. The literal syntax and its initialization are natural and highly readable unlike java in which they are cumbersome and unpleasant.
The Groovy Beans property. Although Java is based on the concept of JavaBeans as a structure, still it lacks a direct syntactic support. Whereas, groovy can declare a field as a property as trivial an
This feature was presented in groovy since its first release especially in the collection framework.
All of these

10. What are the advantages of groovy?
Operator overloading is also possible in this
Maps, arrays, ranges, and regular expressions can be literally declared
It possesses efficient object navigation
All of the above

11. How Is Groovy string expressed?
It is surrounded by double quotes, for regular strings it uses single quotes
It may contain Groovy Expressions noted in ${}
Square bracket syntax may be applied like charAt(i)
All of the above

12. What are the limitations of Groovy?
For using groovy, you need to have enough knowledge of Java. Knowledge of Java is important because half of groovy is based on Java
It might take you some time to get used to the usual syntax and default typing
It consists of thin documentation
All of the above

13. What are the features of groovy JDK?
This feature was presented in groovy since its first release especially in the collection framework
GDK enhancements. Many operators for many of the classes and various additional methods have also been introduced by groovy
Both of these
none of these

14. How can we build AST (Abstract Syntax Trees) in Groovy from a string?
Strings
Code
From DSL like specification
All of these

15. AST in Groovy can be built from
Strings
Codes
DSL
All of the above

16. What is Groovydoc Comment?
Type definitions (classes, interfaces, enums, annotations)
Fields and properties definitions
Methods definitions
All of the above

17. What does JVM stand for?
Java Value-based Machine
Java Virtual Machine
JavaScript Virtual Machine
JavaScript Value-based Machine

18. Following the assignment def x = 2/3; what it the type of variable x?
Integer
Rational
BigInteger
BigDecimal

19. Which tool provides a GUI for writing simple Groovy programs?
Groovysh
GroovyConsole
Groovy
None

20. Which tool provides a GUI for writing simple Groovy programs?
Groovysh
GroovyConsole
Groovycorrect
Nonewrong

21. Groovy is based on
Java
JavaScript
Python
Ruby

22. Groovy is a high-level language
True
False
Error
Can not say

23. Groovy is
Dynamically typed language
Statically typed language
Optionally typed (Both dynamic and static)
None of these

24. In static programming languages
type checking happens at run time
type checking happens at compile time
both (a) and (b)
None of These

25. In Groovy map, each element will be mapped to a A. B. C.
ID
Value
Key
None of These

26. Groovy can be used as a scripting language.
False
True
Error
None of These

27. What will be the output for the following code? def example = 1..100 println(example.getTo())
1
99
100
None of these

28. In groovy all methods and classes are--------------by default A. B. C.
Private
Public
Protected
None

29. AST in Groovy can be built from…
Strings
Codes
DSL
None of These

30. Which of the following is a reason why programmers use Groovy?
It is fast and easy
It requires a small portion of memory
Documentation is thin
Operators can be overloaded

31. Groovy is an object oriented programming language for
JVM
HTML
PHP
Python

32. All of the following are uses of Groovy except…
To combine Java modules
To write Java application
To extend existing Java applications
To execute Java applications

33. What term do you use in Groovy to declare a function outside a class?
Div
Class
Def
Function

34. Groovy does not require…
Large memory
Java knowledge
Syntaxes
Class declaration

35. What is the limitation of Groovy?
Groovy can be slower
Groovy might need lots of memory
Groovy start up time requires improvement
All of the above

36. How can we build AST (Abstract Syntax Trees) in Groovy from string?
Strings
Code
From DSL like specification
All of the above

37. What is the command to run a groovy file from the command line
groovy “location of file”
groovy run “location of file”
both (a) and (b)
None of these

38. How to use single line comments in groovy
// comment
# comment
$ comment
All of the above