Program 4

 4. Write a Python program to find length of string and to convert upper to lower case of a string

The function len() returns the length of a given string. The lower() converts the given string in 

into lowercase and returns the string. The upper()converts the given string in into uppercase 

and returns the string.

# User inputs the string and it gets stored in variable str

str = input("Enter a string: ")

print("Length of the input string is:", len(str))

str = input("Enter Upper Case string: ")

print(str.lower())

str = input("Enter Lower Case string: ")

print(str.upper())

OUTPUT:

Enter a string: Computer science

Length of the input string is: 16

Enter Upper Case string: BGSIT

bgsit

Enter Lower Case string: adichuchanagiri

ADICHUCHANAGIRI