Conditional/ Selection Structure

Question 1

an IF structure is what type of selection structure?

Answer 1

Single-Selection Structure

Question 2

Is it necessary to use curly braces when using a single-selection structure?

Answer 2

No, but it is good coding style.

Question 3

What is an example of a double-selection structure?

Answer 3

If-else

Question 4

What is the final “else” called in a if-else-if structure?

Answer 4

A trailing else block

Question 5

TRUE with the AND operator

Answer 5

All conditions must be true.

Question 6

FALSE with the OR operator

Answer 6

All conditions must be false

Question 7

What is the difference between ‘&’ operator and ‘&&’ operator?

Answer 7

‘&’ is bitwise and will do both comparisons no matter if the first is true or false. ‘&&’ is the logical AND and will stop testing if first condition is false.

Question 8

What is the BANG operator?

Answer 8

NOT (!)

Question 9

How do you get TRUE for the bitwise operator?

Answer 9

Returns TRUE if both values are different

Question 10

What are the other ways to say bitwise operator?

Answer 10

Logical XOR, EXCLUSIVE OR, (^)

Question 11

What is a switch statement able to evaluate for?

Answer 11

Equality (==)

Question 12

What data type can a switch statement NOT evaluate?

Answer 12

Floating numbers (decimals)

Question 13

Can a String be evaluated with a switch statement?

Answer 13

Yes

Question 14

What is typically the final line in a switch statement?

Answer 14

Default

Question 15

What keyword is needed to exit a switch when the matching value is found?

Answer 15

break

Question 16

What are two methods of data “range testing”

Answer 16

1) Inside the Fence

2) Outside the Fence

Question 17

Inside the Fence uses the ___ operator

Answer 17

AND (&&)

Question 18

Outside the Fence uses the ___ operator

Answer 18

OR (||)

Question 19

What is the Ternary operator?

Answer 19

A shorter way to code an if-else structure.

Question 20

Why is it called the Ternary operator?

Answer 20

There are THREE operands

Question 21

Syntax for the ternary operator

Answer 21

condition ? if true : if false;

Question 22

What is a disadvantage of nested if?

Answer 22

As the number of conditions (doors) increase, it becomes more difficult to follow.