1. Nate Brunelle Today: Strings, Type Casting
CS1110
Nate Brunelle
Today: Strings, Type Casting

2. PAs, OHs

3. Questions?

4. Last Time
Values, types, operators

5. Values
A “thing”
Every value has a type

6. Values and Types (not exhaustive)
Operators
-50 ,0 ,5, 30, 512
int
3+7, 3*7,
3-7, 3/7
0.5, 1.2,
float
+, *, -, /
‘hi’, “hi”, ‘hello world! ’
str
+, *int
print, input
function
print()

7. Both types of quotes in a string
Use concatenation (+)
Break up the string so that each piece only had one kind of quote
Use escape sequences
Triple-quoted strings (‘’’, ”””)

8. How to write strings ‘ “
“””
‘’’

9. Escape Sequence Format: \?
Says “the normal rule should not apply to this character = ?” \’
I really mean the single quote character \” \\
I really mean the backslash character \n
The newline character

10. Casting “Reshape” a value of one type to become another type:
Functions for casting:
General: {type name}(value)
int(‘7’) -> the int 7
str(7) -> the str ‘7’
float(‘7.0’)-> the float 7.0
type(value) gives the type of the value