Question

i want to write phoneBook program in java and i have arraylist of contacts and want to sort by last name what should i do ?

Answer 1

is it a 2-dimentional array?

Answer 2

array?

Answer 3

ye sry doesnt matter xD read wrong :P

Answer 4

do you have some code to share so i can help you ? (not sure i can but i can try :P)

Answer 5

i mean arraylist have some methods like get, set, add, any exist for sorting an object by one of it' elements?

Answer 6

the sort method if i am not wrong...or you could override the existing sorting method and make your own.

Answer 7

You need to implement a sorting algorithm on the arraylist... Like a bubble sort on the last name.