Question

Which of the following in not valid string operation?



Slicing

Updating

Repetition

Floor

​

Answer 1

Answer:

Option c

Explanation:

Repetition is the correct one

Answer 2

Answer:

The right answer is floor.

Explanation:

A string operation is the group of characters which can be operated by NULL function.

String is also known as a sequence of characters.

Programming languages widely using string languages are c, c++, python.

Here, the string operation used in python language is as follows:

1. Slicing:

A slicing string that is slice( ) are used create a object that are a set of indices by ranges of start, stop and step.

Syntax for slicing:

S[start_pos:end_pos:step]

Here, start_pos is neginning index of substring.

         End-pos is end index

         Step is steps followed form beginning to end.

2. Updating:

A updating string is used for updating an existing string to another new string which will be replaced with new value.

Syntax of update string:

A = {'q', 'b'}

B = {6, 2, 3}

result = A.update(B)

print('A =', A)

print('result =', result)

Output:

A = {'q', 6, 2, 3, 'b'}

result = None

3. Repetition:

A Repetition string is used for checking the length of the word or sentences. It is denoted by a ‘*’ symbol, it helps in number of characters entered.

Example:

str = 'Python program'

print(str*3)

Output:

Python program python program python program.

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