Java Unit 1

Which of the following is used to indicate a new line?

• \n

• \"

• \'

• \\

• \t

Which of the following is a legal variable name in Java?

• 3average

• char

• test.1

• ans

• the answer

Assuming that "scan" is a properly initialized Scanner variable, which of the following correctly inputs a String?

• String val = scan.nextValue();

• String val = scan.nextDouble();

• String val = scan.nextInt();

• String val = scan.nextLine();

• String val = nextDouble();

Which of the following is NOT a primitive data type?

• double

• int

• char

• String

• All of the above options are primitive data types

Put the following data types in order from smallest to largest (in terms of memory used).

• int, char, double, String

• int, double, char, String

• char, int, double, String

• double, char, int, String

• double, int, char, String

Which of the following is modular division NOT used for?

• money calculations

• patterns

• converting decimals to whole numbers

• testing even and odd numbers

• time calculations

What is (6 % 2) * 7?

• 21

• 7

• 1

• 0

• 14

What is the output of System.out.println("The answer is: " + 5 + 19);

• Error- Strings cannot do calculations

• The answer is: 19

• The answer is: 519

• The answer is: 24

• The answer is: 5 19

Consider the following code:

int c = 3 - 37 % 2;

System.out.println (c);

• 8

• 15.5

• 2

• 3

• -18

Which of the following variable assignments is legal in Java?

• char 1 = "G";

• int x = 5.0/2;

• String w = 82.5;

• double n = 3;

• int q = 82.3847;