Question

Explain input() and print() functions with examples.

Answer 1

input () function:

In Python input() function is used to accept data as input at run time.
Syntax:
Variable = input (“prompt string”)

• where, prompt string in the syntax is a statement or message to the user, to know what input can be given.
• The input() takes whatever is typed from the keyboard and stores the entered data in the given variable.
• If the prompt string is not given in input() no message is displayed on the screen, thus, the user will not know what is to be typed as input

Example:
> > > city=input(“Enter Your City: “)
Enter Your City: Madurai
> > > print(“I am from “, city)
I am from Madurai

• The input () accepts all data as strings of characters but not as numbers.
• If a numerical value is entered, the input values should be explicitly converted into numeric data types.
• The int( ) function is used to convert string data as integer data explicitly.

Example:

x= int (input(“Enter Number 1: “))
y = int (input(“Enter Number 2: “))
print (“The sum =”, x+y)
Output
Enter Number 1: 34
Enter Number 2: 56
The sum = 90

print () function :

In Python, the print() function is used to display result on the screen. The syntax for print() is as follows:

Syntax:
print (“string to be displayed as output” )
print (variable)
print (“String to be displayed as output variable)
print (“String 1 “, variable, “String 2′”,variable, “String 3” )….)

Example
> > > print (“Welcome to Python Programming”)
Welcome to
Python Programming
> > > x= 5
> > > y= 6
> > > z=x+y
> > > print (z)
11
> > > print (“The sum =”,z)
The sum=11
> > > print (“The sum of”,x, “and “, y, “is “,z)
The sum of 5 and 6 is 11

• The print( ) evaluates the expressions before printing them on the monitor
• The print( ) displays an entire statement specified within print ( )
• The comma (,) is used as a separator in print more than one time.