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Python | Simple program of a class (Input and print a number)

Here, we are writing a simple class program in Python that will input a number and print the number using class.
Submitted by IncludeHelp, on September 08, 2018

We have to define a class that will initiate a number, input a number and print the number in Python.

Here, we are defining a class named Number – which has a public variable named num, in the class, there are 3 methods:

1. __init__ :
   To initialize the variable, it works as a construction in C++, java.
2. inputNum() :
   This method will ask to the user to input the value.
3. printNum() :
   This method will print number (num).

Example:

# class definition 
class Number:
	# __init__ method just like a constructor 
	def __init__(self, num):
		self.num = num;

	# method to take input from user 
	def inputNum(self):
		self.num = int(input("Enter an integer number: "))

	# method to print the number
	def printNum(self):
		print "num:", self.num

# main code 
# declare object of the class 'Number'
objN = Number(100);
objN.printNum()

# input from user 
objN.inputNum()
objN.printNum()

Output

num: 100
Enter an integer number: 200
num: 200