Chapter 8 - More About Strings

Question 1

Characters are stored in

Answer 1

numeric form

Question 2

Two commonly used types of code:

which one does python use?

Answer 2

ASCII, and Unicode UTF-8

python uses unicode

Question 3

string:

Answer 3

a sequence of 1 or more individual characters that could consist of letters, numbers, white space, characters, or symbols

Question 4

character:

Answer 4

a symbol that could be from an alphabet, special character, etc. similar to how integers are converted to binary values by the compiler, characters are converted to UNICODE values in python

Question 5

are strings mutable or immutable?

Answer 5

Immutable. Strings cannot be changed once created.

Question 6

will this work?

string[index] = new_character

Answer 6

NO. you cannot change a string once created

Question 7

Why use unicode instead of ascii?

Answer 7

Unicode:
-more generalized and consists of a value for every possible character in every possible language.

-able to display messages in a variety of languages and symbols

• better choice for encoding

ASCII:
- represents very limited set of alphabets or symbols like lowercase (a-z), digits (0-9), symbols, etc.

Question 8

One major advantage of using strings:

Answer 8

they can be accessed both forwards and backwards