Perl if-else Statement
The if statement in Perl language is used to perform operation on the basis of condition. By using if-else statement, you can perform operation either condition is true or false. Perl supports various types of if statements:
- If
- If-else
- If else-if
Perl If Example
The Perl single if statement is used to execute the code if condition is true. The syntax of if statement is given below:
Flowchart of if statement in Perl
Let’s see a simple example of Perl language if statement.
Output:
Even Number
Here, output is even number as we have given input as 10.
Perl If-else Example
The Perl if-else statement is used to execute a code if condition is true or false. The syntax of if-else statement is given below:
Flowchart of if-else statement in Perl
Let’s see the simple example of even and odd number using if-else statement in Perl language.
Output:
Even Number
Here, input is an even number and hence output is even.
Perl If-else Example with Input from user
In this example, we’ll take input from user by using standard input (<STDIN>/<>).
Output:
Enter a Number? 5 Odd Number
Enter a Number? 4 Even Number
In the first output, user has entered number 5 which is odd. Hence the output is odd.
In the second output, user has entered number 4 which is even. Hence the output is even.
Perl If else-if Example
The Perl if else-if statement executes one code from multiple conditions. The syntax of if else-if statement is given below:
Flowchart of if else-if statement in Perl
The example of if else-if statement in Perl language is given below.
Output:
Enter a Number to check grade 66 C Grade
Enter a Number to check grade 2 Wrong Number