Dart Q_3.1

from what we can read input from user?

• cin>>;

• console.readline();

• readlinesync();

• stdin.readlinesync();

what library is used to read from user?

• dart:math

• dart:io

• dart:html

List lst=[4,5,6,7];

Queue que=Queue<String>.from(lst);

print(que);

• {4,5,6,7}

• [4,5,6,7]

• 4,5,6,7

• error

String str="my age is 24 my father age is 66";

print(str.replaceAll(RegExp(r'\d+'), 'ali'));

print('----');

print(str);

• my age is 24 my father age is 66

  ----

  my age is 24 my father age is 66

• my age is ali my father age is ali

  ----

  my age is ali my father age is ali

• my age is ali my father age is ali

  ----

  my age is 24 my father age is 60

• error

enum en{one,two,three,four}

print(en.two.index);

• 2

• 1

• null

• error

String str ='3.0';

print(num.parse(str).runtimeType);

• double

• int

• string

var a ="18"; var b="15";

print(a+b);

• 1815

• 33

• 32

can we put elements of list inside a queue with one line code?

• true

• false