Ruby program to check the given number is an odd number using library function

Program/Source Code:

The source code to check the given number is an odd number using the library function is given below. The given program is compiled and executed successfully.

# Ruby program to check given number is an 
# odd number using library function

num1 = 20
num2 = 3

if num1.odd?()
    print "num1 is an odd number\n";
else
    print "num1 is an even number\n";
end

if num2.odd?()
    print "num2 is an odd number\n";
else
    print "num2 is an even number\n";
end

Output:

num1 is an even number
num2 is an odd number

Explanation:

In the above program, we created two variables num1, num2 and initialized 20, 3 respectively. Then we used the odd?() function to check created variables contains the odd number or not and printed the appropriate message. The odd?() function returns a Boolean value. It returns true when the variable contains an ODD number, otherwise, it returns false.