flutter g28

var a = 9;

var b = 5;

print(a>b);

what is the output of this code?

• true

• false

• a>b

print('6>7');

what is the output?

• true

• false

• null

• none of these

which one print 10?

• int num =9;

  print ("the number is $num + 1");

• int num =9;

  print ("the number is ${num + 1}");

• int num =9;

  print ("the number is num +1");

• int num =9;

  print ("the number is " + (num +1));

var a ="4";

var b ="2";

print(a+b);

what is the output of this code?

• error

• null

• 42

• 6

Dart is an open source programming language developed by ......?

• Microsoft

• Google

• Oracle

Semicolons are .....?

• Required

• Optional

if you initialize a variable as var,once assigned type cannot change?

• true

• false

num x=18.0;

what is the data type of the variable x;

• num

• double

• int

num is data type?

• true

• false

var is data type?

• true

• false