https://www.tutorialandexample.com/groovy-interview-questions Apache Groovy Tutorial is an object-oriented programming language. It is used for Java platform. It is static as well as a dynamic language. Groovy has features similar to Python, Ruby, Perl, and Smalltalk. Groovy can be used both as a programming language and as a scripting language for the Java Platform.

1. JAVATPOINT
www.javatpoint.co

3. Groovy is an object-oriented
programming lan
based on the Jav . It
can be used as the scripting
language.
1) WHAT IS GROOVY?

4. 2) WHO
DESIGNED THE
GROOVY?

6. 4) WHY WE
SHOULD
USE
GROOVY?
We should use Groovy
because of the following
advantages.
• It provides easy syntax.
• It has a lot of java
libraries.
• It is easy to integrate.
• It is object-oriented.
• It provides reusable
code etc.

7. 5) WHAT ARE THE
FEATURES OF
GROOVY?
Groovy features are listed below:
• It supports operator
overloading.
• We can use existing Java
libraries.
• It supports various markup
languages such as XML and
HTML.
• It supports for regular
expressions

8. The following limitations of Groovy are:
• The process of Groovy is slower.
• It needs lots of memory
• It requires Java knowledge
• Getting used to New Syntax,
closures, and default typing takes
some time.

9. class Example {
static void main(String[]
args) {
println('Hello World');
}
}
THE
FOLLOWING
PROGRAM IS
SIMPLE:
EXAMPLE:
7) HOW CAN
WE WRITE A
SIMPLE
PROGRAM?

10. 8) WHAT IS
GROOVYSH?
Groovysh is a command-line application. It
enables access to evaluate

11. 9) WHAT ARE THE TYPES
OF COMMENT USED IN
GROOVY?
Via single comment ( // )
Via multi comment ( /* ....*/)

12. In Groovy, the following steps are to declare
a string.
• The string is closed with single and
double quotes.
• It contains Groovy Expressions noted in
${}
• Square bracket syntax may be applied
like charAt(i)

13. The operators of Groovy
are listed below:
• Arithmetic operators
• Relational operatorss
• Logical operators
• Bitwise operators
• Assignment operators

14. 12) WHAT IS
MULTI-
METHODS IN
GROOVY?
In Groovy, the methods that will
be invoked are chosen at runtime,
called runtime dispatch or multi-
methods.

15. We can initialize the array by using
the given below code.
int[] array = [1,2,3]

16. In Groovy, Closures is an open anonymous block of
code that can take arguments. It returns a value and
is assigned to a variable. Syntax:
{ [closureParameters -> ] statements
}

17. In Groovy, we can retrieve a single value from database by using given
steps:
row = sql.firstRow (‘select columnA, column from tableName’)
println “Row: columnA = and column = ―

18. The following code includes a Groovy script into
another Groovy.
16) How to include a
Groovy script into another
groovy?
Evaluate(new
file(“../tools/Tools.groovy―
))