Using switch case in Perl

In the following example we can see the usage of switch case in Perl. 

Here we shall be using the 'Switch' CPAN module specifically.

Here the following Program name is 'switch_case.pl'

#!/usr/bin/perl
use Switch;

# Defining an array of numbers
my @arr = (1, 2, 3, 4);

# Selecting any random element from the array
my $randomnumber = $arr[rand @arr];

# using the switch case functionality
switch($randomnumber) {
 case 1 { print "First Element Of Array: $randomnumber\n" } 
 case 2 { print "Second Element Of Array: $randomnumber\n" } 
 case 3 { print "Third Element Of Array: $randomnumber\n" } 
 else   { print "Fourth Element Of Array: $randomnumber\n" } 
}

Steps To Run The Program:
-------------------------
1) On the command prompt goto the directory where the program is created, type the following and hit enter.

perl switch_case.pl

Output of the above program is either of the following lines:

First Element Of Array: 1

or 

First Element Of Array: 2

or 

First Element Of Array: 3

or 

First Element Of Array: 4