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Program 7: To join two or more strings using string concatenation operator

Program7.py

File Edit Format Run Options Window Help
s1 = 'Here'

s2 = 'Is'
s3 = 'Python'
s = s1 + s2 + s3 Output
print(s) HereIsPython

String Replication Operator (*): The replication operator is used to repeat the string for a given
number of times.

Program 8: To repeat a string using string replication operator

Program8.py

File Edit Format Run Options Window Help

s1 = 'Hello'
s = s1 * 3
Output
print(s)
HelloHelloHello

String Built-in Functions

Python includes the following built-in functions to manipulate strings:

len(): The len() function calculates and returns the length of a string supplied as an argument. Syntax
of using len() function is:

len(string_name)

lower(): The lower() function converts all uppercase letters to lowercase. Syntax of using lower()
function is:

string_name.lower()

upper(): The upper() function converts all lowercase letters to uppercase. Syntax of using upper()
function is:

string_name.upper()

capitalize(): The capitalize() function returns a string with the first character in capital. Syntax of
using capitalize() function is:

string_name.capitalize()

#Functions and Strings in Python 133