Booleans

Question 1

equal to

Answer 1

==

Question 2

not equal to

Answer 2

!=

Question 3

what do booleans do

Answer 3

compare two things

Question 4

what will booleans be assigned

Answer 4

true or false

Question 5

booleans are used with

Answer 5

if statements

Question 6

how to invert a boolean

Answer 6

!

Question 7

if a is true and b is false what will a&&b give

Answer 7

false (a and b)

Question 8

if a is true and b is true what will a&&b give

Answer 8

true (a and b )

Question 9

what sign is used for and

Answer 9

&&

Question 10

what sign is used for or

Answer 10

||

Question 11

if a is true and b is false what will a||b give

Answer 11

true

Question 12

if a is rue and b is true whta will a||b give

Answer 12

true

Question 13

if a is false and b is false what will a||b give

Answer 13

false

Question 14

if a is true what will !a give

Answer 14

false

Question 15

boolean ! associativity (which direction is it read in)

Answer 15

right to left

Question 16

boolean && associativity

Answer 16

left to right

Question 17

boolean || associativity

Answer 17

left to right

Question 18

what is the precedence of the three (!, || and &&)

Answer 18

1. !
2. &&
3. ||

Question 19

where do the boolean operators fir into the overall precedene

Answer 19

between equality and conditional

Question 20

what order will the following operations occur in?

boolean cannotDrive = (age>17) || (!hasLicence) ;

Answer 20

1. <
2. !
3. ||
4. =

Question 21

what order will the following operations occur

boolean canDrive = (age>17) && (hasFullLicence || hasProvisionalLicence);

Answer 21

1. >
2. ||
3. &&
4. =

Brackets override precedence

Question 22

what would be the precedence here?

boolean canDrive = (age>17) && hasFullLicence || hasProvisionalLicence;

is that what we want?

Answer 22

1. >
2. &&
3. ||
4. =

No