variable naming rules & data types

Question 1

what are the variable naming rules

Answer 1

1. consistency: ‘name’ is not the same as ‘Name’ or ‘NAME’
2. spacing: variable names do not have spaces in them, use an underscore or camelCase
3. digits: variable names do not begin with digits

Question 2

what are the data types

Answer 2

1. string [str]- used for a combination of characters on the keyboard
2. characters [char]- used for single letters
3. integer [int]- used for whole numbers
4. float or real - used for fractions and decimals
5. boolean [bool.]- used for true / false, yes/no or male / female questions [questions with only two outcomes].