Chapter 8: Problem 5

How do you find the length of a string?

Short Answer

Expert verified

Answer: To find the length of a string in Python, you can use the built-in len() function by passing the string as an argument, like this: len(string). Special characters, such as newline (\n) and tab (\t), are counted as one character each, and they do affect the length of the string.

Step by step solution

1. Introduction to Strings in Python

In Python, strings can be represented using single quotes (' ') or double quotes (" "). For example, the string "Hello, World!" can be represented in Python as 'Hello, World!' or "Hello, World!". To find the length of a string in Python, we can use the built-in len() function.

2. Using the len() function to find the length of a string

The len() function in Python takes a string as its input and returns the number of characters in that string. To use the len() function, simply pass the string as an argument to the function, like this: len(string). Here's an example to find the length of the string "Hello, World!": ```python string = "Hello, World!" length = len(string) print(length) # Output: 13 ``` In this example, we have a string "Hello, World!" and we pass it as an argument to the len() function. The function returns the number of characters in the string, which is 13 in this case. Finally, we print the result, which shows the length of the string.

3. Handling strings with special characters

Keep in mind that some characters in a string might be escape characters, such as a newline (\n) or tab (\t). These characters still count as one character each, but they might not be visible when the string is printed. For example: ```python string_with_newline = "Hello,\nWorld!" length_with_newline = len(string_with_newline) print(length_with_newline) # Output: 13 ``` Here, the string has a newline character (\n) that separates "Hello," and "World!". When passed to the len() function, it still counts as one character, and the total length of the string is 13.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Computer Science Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

How do you find the length of a string?

Short Answer

Step by step solution

1. Introduction to Strings in Python

2. Using the len() function to find the length of a string

3. Handling strings with special characters

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Computer Science Textbooks

Theory of Computation

Game Design in Computer Science

Computer Programming

Databases

Issues in Computer Science

Data Representation in Computer Science

Study anywhere. Anytime. Across all devices.