CST 231: Midterm Prep Quiz

System.___.println("Hello world");

• out

• in

• over

• on

Which is the correct way to read a decimal number from a user?

• Scanner s = new Scanner(System.in);

  int number = s.nextDouble();

• Scanner s = new Scanner(System.in);

  double number = s.nextDouble();

• Scanner s = new Scanner(System.in);

  float number = s.nextDouble();

• Scanner s = new Scanner(System.in);

  double number = s.nextInt();

The type or range of allowed values for a variable is called?

• Datarange

• datacapacity

• datastore

• datatype

what will be the output of Math.sqrt(64)

• 8

• 6

• 8.0

• 4

what will be the output of Math.pow(3,3)

• 9.0

• Invalid input

• 27.0

• 6.0

what will be the output of Math.floor(12.2)

• 12

• 13

• 12.0

• 13.0

Math.ceil(12.6)

• 12.0

• 12

• 13

• 13.0

Math.abs(-12.4)

• -12.0

• 12.4

• -13.0

• 13.0

What will be the output given program runs successfully without error
int a=5; b=5

if (a >= b) { print('ONE') };

if (a <=b ) { print('TWO') };

• No Output

• ONE

• TWO

• ONE TWO

true && false = ?

• false

• true