Ruby - calling constructor without arguments & removal of new line characters
- by Raj
I am a newbie at Ruby, I have written down a sample program. I dont understand the following:
Why constructor without any arguments are not called in Ruby?
How do we access the class variable outside the class' definition?
Why does it always append newline characters at the end of the string? How do we strip it?
Code:
class Employee
attr_reader :empid
attr_writer :empid
attr_writer :name
def name
return @name.upcase
end
attr_accessor :salary
@@employeeCount = 0
def initiaze()
@@employeeCount += 1
puts ("Initialize called!")
end
def getCount
return @@employeeCount
end
end
anEmp = Employee.new
print ("Enter new employee name: ")
anEmp.name = gets()
print ("Enter #{anEmp.name}'s employee ID: ")
anEmp.empid = gets()
print ("Enter salary for #{anEmp.name}: ")
anEmp.salary = gets()
theEmpName = anEmp.name.split.join("\n")
theEmpID = anEmp.empid.split.join("\n")
theEmpSalary = anEmp.salary.split.join("\n")
anEmp = Employee.new()
anEmp = Employee.new()
theCount = anEmp.getCount
puts ("New employee #{theEmpName} with employee ID #{theEmpID} has been enrolled, welcome to hell! You have been paid as low as $ #{theEmpSalary}")
puts ("Total number of employees created = #{theCount}")
Output:
Enter new employee name: Lionel Messi
Enter LIONEL MESSI
's employee ID: 10
Enter salary for LIONEL MESSI
: 10000000
New employee LIONEL
MESSI with employee ID 10 has been enrolled, welcome to hell! You have been paid as low as $ 10000000
Total number of employees created = 0
Thanks
