-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[atom_to_binary('Erlang', utf8)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[list_to_atom("atom1")]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[atom_to_list(atom1)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite(atom1), io:fwrite("~n"), io:fwrite("~p~n",[is_atom(atom1)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite(atom1), io:fwrite("~n"), io:fwrite(atom_1),

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[file:list_dir(".")]).

-module(helloworld). -export([start/0]). start() -> Txt = file:read_file("Newfile.txt"),

-module(helloworld). -import(lists,[sum/1]). -export([start/0]). start() -> Lst1 = [5,6,4], io:fwrite("~p~n",[sum(Lst1)]).

-module(helloworld). -import(lists,[sublist/2]). -export([start/0]). start() -> Lst1=[5,6,4], io:fwrite("~p~n",[sublist(Lst1,2)]).

-module(helloworld). -import(lists,[sort/1]). -export([start/0]). start() -> Lst1=[5,6,4], io:fwrite("~p~n",[sort(Lst1)]).

-module(helloworld). -import(lists,[reverse/1]). -export([start/0]). start() -> Lst1 = [1,2,3], io:fwrite("~p~n",[reverse(Lst1)]).

-module(helloworld). -import(lists,[nthtail/2]). -export([start/0]). start() -> Lst1 = [1,2,3], io:fwrite("~p~n",[nthtail(2,Lst1)]).

-module(helloworld). -import(lists,[nth/2]). -export([start/0]). start() -> Lst1 = [1,2,3], io:fwrite("~p~n",[nth(2,Lst1)]).

-module(helloworld). -import(lists,[merge/1]). -export([start/0]). start() -> io:fwrite("~w~n",[merge([[1],[2],[3]])]).

-module(helloworld). -import(lists,[min/1]). -export([start/0]). start() -> Lst1 = [1,2,3,4], io:fwrite("~w~n",[min(Lst1)]).

-module(helloworld). -import(lists,[member/2]). -export([start/0]). start() -> Lst1=[1,2,3,4], io:fwrite("~w~n",[member(3,Lst1)]).

-module(helloworld). -import(lists,[max/1]). -export([start/0]). start() -> Lst1 = [1,2,3,4], io:fwrite("~w~n",[max(Lst1)]).

-module(helloworld). -export([start/0]). -define(a,1). start() -> io:fwrite("~w",[?a]).

-module(helloworld). -export([start/0]). -record(person, {name = "", address}). -record(employee, {person, id}).

-module(helloworld). -export([start/0]). -record(person, {name = "", id}). start() -> P = #person{name = "John",id = 1},

-module(helloworld). -export([start/0]). -record(person, {name = "", id}). start() -> P = #person{name = "John",id = 1},

-module(helloworld). -export([start/0]). start() -> io:fwrite("~w",[tuple_to_list({1,2,3})]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~w",[list_to_tuple([1,2,3])]).

-module(helloworld). -export([start/0]). start() -> P = {john,24,{june,25}} , io:fwrite("~w",[is_tuple(P)]).

-module(helloworld). -export([start/0]). start() -> P = {john,24,{june,25}} , io:fwrite("~w",[tuple_size(P)]).

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1=[{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],