Reading data from the Keyboard:-
Read the data from the keyboard in any programming language by default it takes string format only,
browser(string format),
browser(string format),
command prompt(text format).
- in c-language by using scanf function.
- in java language by using InputBufferReader, InputStream,Scanner.
- in python2.7 by using input( ) and raw_input( ).
- in python3.5 by using input( )
We can read the data from the keyboard in python2.x by using input( ) and raw_input( )
- Python2.x ----> input( ), raw_input( ) for string data type.
- in python2.x-----> type conversion is implicitly
If we use Python
2.7 version for taking input as String data type then we must use raw_input
whereas for other data types we can use as below.
Example 1:
x=raw_input ('enter
fname :')
print(x)
y=raw_input ('enter
lname :')
print(y)
print(x+y)
Output:
========= RESTART:
C:/Python27/keyboard.py =========
enter fname: siva
siva
enter lname: krishna
krishna
sivakrishna
Example 2:
x=input ('enter
first integer :')
print(x)
y=input ('enter
second integer :')
print(y)
print(x+y)
Output:
========= RESTART:
C:/Python27/keyboard.py =========
enter first
integer:3
3
enter second
integer:6
6
9
We can read the data from the keyboard in python3.x by using input( )
- In Python3.x -----> input( )
- In Python3.x -----> type conversion is explicitly
Example 1:
x=input('enter
fname: ')
print(x)
y=input('enter
lname: ')
print(y)
print(x+y)
Output:
enter fname: siva
siva
enter lname:
krishna
krishna
sivakrishna
Example2:
x=input('enter
first integer: ')
print(x)
y=input('enter
second integer: ')
print(y)
print(x+y)
Output:
enter first
integer: 4
4
enter second
integer: 5
5
45
Note:
above example my requirement is addition of two numbers, but output will be show concatination. here we are going type conversion mechanism.
Example3:
x=int(input('enter
first integer: '))
print(x)
y=int(input('enter
second integer: '))
print(y)
print(x+y)
Output:
enter first
integer: 4
4
enter second
integer: 5
5
9
Example4:
x=input('enter
first integer: ')
print(x)
i=int(x)
y=input('enter
second integer: ')
print(y)
j=int(y)
print(x+y)
Output:
enter first
integer: 4
4
enter second
integer: 5
5
9
