U1 Primitive Types

Question 1

What line of code outputs "Hello"?

Accepted Answer

System.out.println("Hello");

Question 2

What is the result of the following segment of code?

Accepted Answer

You are age years old

Question 3

Which of the following is NOT a primitive type?

Accepted Answer

String

Question 4

Which line of code correctly gives an answer of -6?

Accepted Answer

12 - 6* 2 - 6 / 1

Question 5

How do you declare a variable?

Accepted Answer

datatype name;

Question 6

What is the output of this segment of code?

Accepted Answer

January

Question 7

What is the value of after this statement? double X = 21.0/5;

Accepted Answer

4.2

Question 8

What is the result of the following segment of code?

Accepted Answer

15

Question 9

Which of these is correct way to import the scanner class?

Accepted Answer

import java.util.Scanner

Question 10

What value can a boolean have?

Accepted Answer

true

Question 11

What does the ++ operator do? (For example x++)

Accepted Answer

Increases x by 1

Question 12

What is the result of the following code?

Accepted Answer

month

Question 13

What term is given to this code that changes a value from one type to another: (int) 16.7

Accepted Answer

casting

Question 14

What is the value of X after this statement? X = 3.0/2.0

Accepted Answer

1.5

Question 15

What is the compound assignment operator that would shorten this: X = X % 3

Accepted Answer

%=

Question 16

What is the value of X after this statement? X = 5%3

Accepted Answer

2

Question 17

Evaluate the following expression: 1 + 6 / 2 *4 % 2 - 2.0/4

Accepted Answer

0.5

Question 18

What is the name of the method to print out text in Java?

Accepted Answer

System.out.println();

Question 19

What is the result of this line of code: (int) 16.7

Accepted Answer

16

Question 20

A way to store data in Java

Accepted Answer

variable

Question 21

Which is a correct Scanner initialization statement?

Accepted Answer

Scanner input = new Scanner (System.in);

Question 22

What is the compound assignment operator that would shorten this: X = X + 2

Accepted Answer

+=

Question 23

Which of these statements is not correct?

Accepted Answer

String name = input.nextInt();

Question 24

Which line is best to declare a variable to store someone's height in pounds to 1 decimal?

Accepted Answer

double height;

Question 25

What is the result of the following segment of code?

Accepted Answer

20

Question 26

Which of these is not a valid Java variable name?

Accepted Answer

1spin

Question 27

Which of the following will cast an int, x, to a double?

Accepted Answer

(double) x

U1 Primitive Types

Questions 27

U1 Primitive Types

Questions 27