memory allocation

Question 1

what are the 2 forms of memory allocation

Answer 1

static and dynamic

Question 2

what is static memory allocation

Answer 2

values for a fixed size

Question 3

why is it important to have static memory allocation

Answer 3

so we can allocate space before running the code

Question 4

what data types are stored in static

Answer 4

primitive data types

Question 5

what are the primitive data types

Answer 5

(32 bits)
- ints
- floats
- char
- bool
(64 bits)
- double

Question 6

what is dynamic memory allocation

Answer 6

values we don’t know exactly how much memory space we will need

Question 7

what is stored in dynamic

Answer 7

objects

Question 8

what are classed as objects

Answer 8

lists and strings

Question 9

what is a list

Answer 9

object

Question 10

what is a string

Answer 10

object

Question 11

what is a int

Answer 11

primitive data type

Question 12

what is a float

Answer 12

primitive data type

Question 13

what is a char

Answer 13

primitive data type

Question 14

what is a bool

Answer 14

primitive data type

Question 15

what is a double

Answer 15

primitive data type

Question 16

how many bits is a double

Answer 16

64

Question 17

what do we use if we don’t know how much space objects will need

Answer 17

object reference (pointer)

Question 18

what is the difference between an object and a variable

Answer 18

a variable is stored in the stack only
- most of the object is in the heap but the object reference is stored in the stack

Question 19

what does an object reference point to

Answer 19

points to a memory location in the heap