how to modify ?how to concate?uppercase,lowercase,remove w

1. String in Python

2. Python String
 Strings in python are surrounded by either single quotation marks, or double
quotation marks.
 'hello' is the same as "hello".
 Ex print("Hello")
 Output: Hello
 Assign string to a variables
 For ex:
 A=“hello”
 Print(a)
 Output:
 Hello

3. Multiline Strings
 You can assign a multiline string to a variable by using three quotes
 For ex.
 A=“”” Essay are short pieces of writing with a focus on a single subject. It starts with
the introduction of the subject, followed by a middle or body in which the author
gives his argument as per his understanding of the subject followed by a conclusion
paragraph that summarises the findings of the essay.”””
 Print(a)
 In single quotes:
 For ex.
 a=‘’’Essay are short pieces of writing with a focus on a single subject. It starts with the
introduction of the subject, followed by a middle or body in which the author gives his
argument as per his understanding of the subject followed by a conclusion paragraph
that summarises the findings of the essay.’’’
 Print(a)

4. Strings as array
 Square brackets can be used to access elements of the string.
 For ex.
 A=“hello world”
 Print(a[1])
 Output:
 e
 Slicing string
 You can return a range of characters by using the slice syntax.
 Specify the start index and the end index,
 separated by a colon,
 to return a part of the string.

5.  For ex.
 b = "Hello, World!"
print(b[2:5])
 Output:
 llo
 Modify Strings
 Upper Case for ex. a=“hello world” print(a.upper())
 Lower Case for ex. A=“hello world” print(a.lower())
 Remove Whitespace for ex. A=“hello world” print(a.strip())
 Replace String for ex. A=“hello world” print(a.replace())
 String Concatenation
 For ex.
 a = "Hello"
b = "World"
c = a + b
print(c)