basic structs

Question 1

what is data structures

Answer 1

is a systematic way of organizing and accessing data

Question 2

how do you declare an array

Answer 2

type[] arrayname = new type[size];

Question 3

diffrences between linked list and arrays

Answer 3

arrays

• elements of an array can be easily access by indices
• the capacity of the array is fixed when created
• intersion and deletion can be time consuming if many elements are to be shifted

linked lists

• size can be easily changed
• elements can be added and deleted easily
• no quick access to elements

Question 4

what is inside a singly linked list

Answer 4

• elements

- next

Question 5

what is inside a doubly linked list

Answer 5

-elements
-next
-prev
can be added and deleted nodes from head or tail